Fatto generale: 20003 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 20003 is an uninteresting number.
Trivia: 20003 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: October 6th is the day in 1976 that New Premier Hua Guofeng orders the arrest of the Gang of Four and associates and ends the Cultural Revolution in the People's Republic of China.