12331031312 has 40 divisors (see below), whose sum is σ = 25156723200. Its totient is φ = 5839178112.

The previous prime is 12331031303. The next prime is 12331031341. The reversal of 12331031312 is 21313013321.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1831889 + ... + 1838607.

It is an arithmetic number, because the mean of its divisors is an integer number (628918080).

Almost surely, 2^12331031312 is an apocalyptic number.

It is an amenable number.

12331031312 is an abundant number, since it is smaller than the sum of its proper divisors (12825691888).

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

12331031312 is a wasteful number, since it uses less digits than its factorization.

12331031312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12783 (or 12777 counting only the distinct ones).

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

Adding to 12331031312 its reverse (21313013321), we get a palindrome (33644044633).

The spelling of 12331031312 in words is "twelve billion, three hundred thirty-one million, thirty-one thousand, three hundred twelve".