3131201312 has 24 divisors (see below), whose sum is σ = 6202382256. Its totient is φ = 1555993152.

The previous prime is 3131201299. The next prime is 3131201323. The reversal of 3131201312 is 2131021313.

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, 294938 + ... + 305369.

It is an arithmetic number, because the mean of its divisors is an integer number (258432594).

Almost surely, 2^3131201312 is an apocalyptic number.

3131201312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3131201312 is a deficient number, since it is larger than the sum of its proper divisors (3071180944).

3131201312 is a wasteful number, since it uses less digits than its factorization.

3131201312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600480 (or 600472 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 3131201312 is about 55957.1381684232. The cubic root of 3131201312 is about 1462.9753099153.

Adding to 3131201312 its reverse (2131021313), we get a palindrome (5262222625).

It can be divided in two parts, 313120 and 1312, that added together give a cube (314432 = 68³).

The spelling of 3131201312 in words is "three billion, one hundred thirty-one million, two hundred one thousand, three hundred twelve".