31021033012012 has 6 divisors (see below), whose sum is σ = 54286807771028. Its totient is φ = 15510516506004.

The previous prime is 31021033012003. The next prime is 31021033012063. The reversal of 31021033012012 is 21021033012013.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3877629126498 + ... + 3877629126505.

Almost surely, 2^{31021033012012} is an apocalyptic number.

It is an amenable number.

31021033012012 is a deficient number, since it is larger than the sum of its proper divisors (23265774759016).

31021033012012 is a wasteful number, since it uses less digits than its factorization.

31021033012012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7755258253007 (or 7755258253005 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 31021033012012 its reverse (21021033012013), we get a palindrome (52042066024025).

Subtracting from 31021033012012 its reverse (21021033012013), we obtain a palindrome (9999999999999).

The spelling of 31021033012012 in words is "thirty-one trillion, twenty-one billion, thirty-three million, twelve thousand, twelve".