3131200132 has 6 divisors (see below), whose sum is σ = 5479600238. Its totient is φ = 1565600064.

The previous prime is 3131200129. The next prime is 3131200139. The reversal of 3131200132 is 2310021313.

It can be written as a sum of positive squares in only one way, i.e., 2347983936 + 783216196 = 48456^2 + 27986^2 .

It is not an unprimeable number, because it can be changed into a prime (3131200139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 391400013 + ... + 391400020.

Almost surely, 2^3131200132 is an apocalyptic number.

It is an amenable number.

3131200132 is a deficient number, since it is larger than the sum of its proper divisors (2348400106).

3131200132 is a wasteful number, since it uses less digits than its factorization.

3131200132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782800037 (or 782800035 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 3131200132 is about 55957.1276246378. The cubic root of 3131200132 is about 1462.9751261402.

Adding to 3131200132 its reverse (2310021313), we get a palindrome (5441221445).

The spelling of 3131200132 in words is "three billion, one hundred thirty-one million, two hundred thousand, one hundred thirty-two".