3131332331312 has 20 divisors (see below), whose sum is σ = 6152406484176. Its totient is φ = 1543614528960.

The previous prime is 3131332331299. The next prime is 3131332331389. The reversal of 3131332331312 is 2131332331313.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1378226123 + ... + 1378228394.

Almost surely, 2^{3131332331312} is an apocalyptic number.

It is an amenable number.

3131332331312 is a deficient number, since it is larger than the sum of its proper divisors (3021074152864).

3131332331312 is a wasteful number, since it uses less digits than its factorization.

3131332331312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2756454596 (or 2756454590 counting only the distinct ones).

The product of its digits is 8748, while the sum is 29.

Adding to 3131332331312 its reverse (2131332331313), we get a palindrome (5262664662625).

Subtracting from 3131332331312 its reverse (2131332331313), we obtain a palindrome (999999999999).

The spelling of 3131332331312 in words is "three trillion, one hundred thirty-one billion, three hundred thirty-two million, three hundred thirty-one thousand, three hundred twelve".