31023312212012 has 48 divisors (see below), whose sum is σ = 56071934916480. Its totient is φ = 15010230377472.

The previous prime is 31023312211999. The next prime is 31023312212023. The reversal of 31023312212012 is 21021221332013.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 410448368 + ... + 410523944.

It is an arithmetic number, because the mean of its divisors is an integer number (1168165310760).

Almost surely, 2^{31023312212012} is an apocalyptic number.

It is an amenable number.

31023312212012 is a deficient number, since it is larger than the sum of its proper divisors (25048622704468).

31023312212012 is a wasteful number, since it uses less digits than its factorization.

31023312212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100250 (or 100248 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 31023312212012 its reverse (21021221332013), we get a palindrome (52044533544025).

The spelling of 31023312212012 in words is "thirty-one trillion, twenty-three billion, three hundred twelve million, two hundred twelve thousand, twelve".