Fatto generale: 1019 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 1019 is a value of n for which one more than the product of the first n primes is prime.
Trivia: 1019 is a boring number.
Data storica: October 15th is the day in 1956 that Fortran, the first modern computer language, is shared with the coding community for the first time.