3121313332132 has 12 divisors (see below), whose sum is σ = 5783609997900. Its totient is φ = 1468853332736.

The previous prime is 3121313332129. The next prime is 3121313332139. The reversal of 3121313332132 is 2312333131213.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2635635359296 + 485677972836 = 1623464^2 + 696906^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3121313332132.

It is not an unprimeable number, because it can be changed into a prime (3121313332139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22950833257 + ... + 22950833392.

It is an arithmetic number, because the mean of its divisors is an integer number (481967499825).

Almost surely, 2^{3121313332132} is an apocalyptic number.

It is an amenable number.

3121313332132 is a deficient number, since it is larger than the sum of its proper divisors (2662296665768).

3121313332132 is a wasteful number, since it uses less digits than its factorization.

3121313332132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45901666670 (or 45901666668 counting only the distinct ones).

The product of its digits is 5832, while the sum is 28.

Adding to 3121313332132 its reverse (2312333131213), we get a palindrome (5433646463345).

The spelling of 3121313332132 in words is "three trillion, one hundred twenty-one billion, three hundred thirteen million, three hundred thirty-two thousand, one hundred thirty-two".