31033113011012 has 24 divisors (see below), whose sum is σ = 62067231093504. Its totient is φ = 13299690203712.

The previous prime is 31033113010979. The next prime is 31033113011023. The reversal of 31033113011012 is 21011031133013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7207793 + ... + 10677944.

It is an arithmetic number, because the mean of its divisors is an integer number (2586134628896).

Almost surely, 2^{31033113011012} is an apocalyptic number.

It is an amenable number.

31033113011012 is an abundant number, since it is smaller than the sum of its proper divisors (31034118082492).

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

31033113011012 is a wasteful number, since it uses less digits than its factorization.

31033113011012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17947715 (or 17947713 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 31033113011012 its reverse (21011031133013), we get a palindrome (52044144144025).

The spelling of 31033113011012 in words is "thirty-one trillion, thirty-three billion, one hundred thirteen million, eleven thousand, twelve".