3131233312 has 12 divisors (see below), whose sum is σ = 6164615646. Its totient is φ = 1565616640.

The previous prime is 3131233289. The next prime is 3131233331. The reversal of 3131233312 is 2133321313.

It can be written as a sum of positive squares in only one way, i.e., 2596513936 + 534719376 = 50956^2 + 23124^2 .

It is an unprimeable number.

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, 48925489 + ... + 48925552.

Almost surely, 2^3131233312 is an apocalyptic number.

3131233312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3131233312 is a deficient number, since it is larger than the sum of its proper divisors (3033382334).

3131233312 is an equidigital number, since it uses as much as digits as its factorization.

3131233312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97851051 (or 97851043 counting only the distinct ones).

The product of its digits is 972, while the sum is 22.

The square root of 3131233312 is about 55957.4241008287. The cubic root of 3131233312 is about 1462.9802936309.

Adding to 3131233312 its reverse (2133321313), we get a palindrome (5264554625).

The spelling of 3131233312 in words is "three billion, one hundred thirty-one million, two hundred thirty-three thousand, three hundred twelve".