31302013013012 has 24 divisors (see below), whose sum is σ = 62615818379520. Its totient is φ = 13412621501280.

The previous prime is 31302013013003. The next prime is 31302013013053. The reversal of 31302013013012 is 21031031020313.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105137564 + ... + 105434867.

It is an arithmetic number, because the mean of its divisors is an integer number (2608992432480).

Almost surely, 2^{31302013013012} is an apocalyptic number.

It is an amenable number.

31302013013012 is an abundant number, since it is smaller than the sum of its proper divisors (31313805366508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31302013013012 is a wasteful number, since it uses less digits than its factorization.

31302013013012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210577751 (or 210577749 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 31302013013012 its reverse (21031031020313), we get a palindrome (52333044033325).

The spelling of 31302013013012 in words is "thirty-one trillion, three hundred two billion, thirteen million, thirteen thousand, twelve".