3131331423212 has 48 divisors (see below), whose sum is σ = 5706243214560. Its totient is φ = 1501718840832.

The previous prime is 3131331423197. The next prime is 3131331423271. The reversal of 3131331423212 is 2123241331313.

It is a Harshad number since it is a multiple of its sum of digits (29).

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 15 ways as a sum of consecutive naturals, for example, 11903618 + ... + 12163830.

It is an arithmetic number, because the mean of its divisors is an integer number (118880066970).

Almost surely, 2^{3131331423212} is an apocalyptic number.

It is an amenable number.

3131331423212 is a deficient number, since it is larger than the sum of its proper divisors (2574911791348).

3131331423212 is a wasteful number, since it uses less digits than its factorization.

3131331423212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260930 (or 260928 counting only the distinct ones).

The product of its digits is 7776, while the sum is 29.

Adding to 3131331423212 its reverse (2123241331313), we get a palindrome (5254572754525).

The spelling of 3131331423212 in words is "three trillion, one hundred thirty-one billion, three hundred thirty-one million, four hundred twenty-three thousand, two hundred twelve".