31331102310012 has 48 divisors (see below), whose sum is σ = 78091263909792. Its totient is φ = 9742379888640.

The previous prime is 31331102309989. The next prime is 31331102310023. The reversal of 31331102310012 is 21001320113313.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 679551439 + ... + 679597542.

It is an arithmetic number, because the mean of its divisors is an integer number (1626901331454).

Almost surely, 2^{31331102310012} is an apocalyptic number.

It is an amenable number.

31331102310012 is an abundant number, since it is smaller than the sum of its proper divisors (46760161599780).

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

31331102310012 is a wasteful number, since it uses less digits than its factorization.

31331102310012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359149118 (or 1359149116 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 31331102310012 its reverse (21001320113313), we get a palindrome (52332422423325).

The spelling of 31331102310012 in words is "thirty-one trillion, three hundred thirty-one billion, one hundred two million, three hundred ten thousand, twelve".