Fatto generale: 7323 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 7323 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 7323 is an unremarkable number.
Data storica: January 18th is the day in 1915 that Japan issues the "Twenty-One Demands" to the Republic of China in a bid to increase its power in East Asia.