3131324231312 has 10 divisors (see below), whose sum is σ = 6066940698198. Its totient is φ = 1565662115648.

The previous prime is 3131324231309. The next prime is 3131324231351. The reversal of 3131324231312 is 2131324231313.

It can be written as a sum of positive squares in only one way, i.e., 2921856910336 + 209467320976 = 1709344^2 + 457676^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97853882213 + ... + 97853882244.

Almost surely, 2^{3131324231312} is an apocalyptic number.

It is an amenable number.

3131324231312 is a deficient number, since it is larger than the sum of its proper divisors (2935616466886).

3131324231312 is a wasteful number, since it uses less digits than its factorization.

3131324231312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195707764465 (or 195707764459 counting only the distinct ones).

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

Adding to 3131324231312 its reverse (2131324231313), we get a palindrome (5262648462625).

Subtracting from 3131324231312 its reverse (2131324231313), we obtain a palindrome (999999999999).

The spelling of 3131324231312 in words is "three trillion, one hundred thirty-one billion, three hundred twenty-four million, two hundred thirty-one thousand, three hundred twelve".