- Mathematical Association of America's Lester R. Ford Award (1990). [ certificate]
- American Mathematical Society's Leroy P. Steele Prize for Seminal Contributions to Research (1998, with H. Wilf). [ certificate]
- Institute of Combinatorics and its Applications's Euler Medal (2004). [ medal citation List of Euler Medalists ].

- $50 from George Andrews and Dick Askey for a proof of Andrews's q-Dyson Conjecture (joint wth D. Bressoud).
- $50 from Dick Askey for a proof of the Madonald-G2 conjecture (joint with L. Habsieger).
- $50 from Dick Askey for a proof of the Madonald-G2-dual conjecture.
- 10 bottles of wine from Xavier Viennot for a bijection between binary trees to ordered trees that sends the Strahler number to the prunning order.
- $100 from Ron Graham for a proof of a conjecture about Schur Triples. (joint with A. Robertson, shared with T. Schoen).
- I am deeply touched and honored to be named (July 27, 2006) Persi Diaconis's favorite (still living!) mathematician.

- The Weizmann Institute of Science Joe Gillis Memorial Lecture, Jan. 25, 1996.
- Texas A&M Frontiers of Mathematics, Feb. 21-23, 2001.
- University of Kentucky Hayden-Howard Lecture, [current page], (poster) Oct. 21, 2003.
- University of Florida Department of Mathematics History Lecture, March 9, 2005.
- Math. Assoc. of America Distinguished Lecture Series, Feb. 20, 2007 (MAA Headquarters, Washington, DC).
- The American Mathematical Society Erdös Memorial Lecture, ( brochure [by Alberto Corso], certificate), March 27, 2010.
- The Weizmann Institute of Science Chaim Leib Pekeris Memorial Lecture, ( poster), June 30, 2010.

According to the "Who's bigger" website viewed March 17, 2014
(but no longer available),
I am the 76415^{th} most famous person who has ever lived
(i.e. there 76414 persons more famous, starting with Jesus(#1), and via Moses (#143)).
I am also the 95523^{th} most significant person.

Ph.D. diploma [in Hebrew] Ph.D. diploma [in English].