Fatto matematico: 2141 is a number whose product of digits is equal to its sum of digits.
Trivia: 2141 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: November 10th is the day in 1989 that Longtime leader of the People's Republic of Bulgaria Todor Zhivkov is removed from office and replaced by Petar Mladenov.