31013233222012 has 12 divisors (see below), whose sum is σ = 54275289266520. Its totient is φ = 15506007717296.

The previous prime is 31013233221947. The next prime is 31013233222031. The reversal of 31013233222012 is 21022233231013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152108818 + ... + 152312569.

It is an arithmetic number, because the mean of its divisors is an integer number (4522940772210).

Almost surely, 2^{31013233222012} is an apocalyptic number.

It is an amenable number.

31013233222012 is a deficient number, since it is larger than the sum of its proper divisors (23262056044508).

31013233222012 is a wasteful number, since it uses less digits than its factorization.

31013233222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304446860 (or 304446858 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 31013233222012 its reverse (21022233231013), we get a palindrome (52035466453025).

Subtracting from 31013233222012 its reverse (21022233231013), we obtain a palindrome (9990999990999).

The spelling of 31013233222012 in words is "thirty-one trillion, thirteen billion, two hundred thirty-three million, two hundred twenty-two thousand, twelve".