Fatto generale: 1333 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 1333 is an uninteresting number.
Trivia: 1333 is an uninteresting number.
Data storica: August 25th is the day in 1989 that Voyager 2 spacecraft makes its closest approach to Neptune, the outermost planet in the Solar System.