3131223023012 has 24 divisors (see below), whose sum is σ = 6271379674560. Its totient is φ = 1340038375200.

The previous prime is 3131223023011. The next prime is 3131223023023. The reversal of 3131223023012 is 2103203221313.

It is not an unprimeable number, because it can be changed into a prime (3131223023011) by changing a digit.

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, 79744562 + ... + 79783817.

It is an arithmetic number, because the mean of its divisors is an integer number (261307486440).

Almost surely, 2^{3131223023012} is an apocalyptic number.

It is an amenable number.

3131223023012 is an abundant number, since it is smaller than the sum of its proper divisors (3140156651548).

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

3131223023012 is a wasteful number, since it uses less digits than its factorization.

3131223023012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159529091 (or 159529089 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 3131223023012 its reverse (2103203221313), we get a palindrome (5234426244325).

The spelling of 3131223023012 in words is "three trillion, one hundred thirty-one billion, two hundred twenty-three million, twenty-three thousand, twelve".