Fatto generale: 12073 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 12073 is an uninteresting number.
Trivia: 12073 is a boring number.
Data storica: January 19th is the day in 379 that Emperor Gratian elevates Flavius Theodosius at Sirmium to Augustus, and gives him power over all the eastern provinces of the Roman Empire.