3130311312 has 40 divisors (see below), whose sum is σ = 8985154080. Its totient is φ = 1043436960.

The previous prime is 3130311209. The next prime is 3130311323. The reversal of 3130311312 is 2131130313.

It is a happy number.

It is a super-2 number, since 2×3130311312² = 19597697820070322688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 in 7 ways as a sum of consecutive naturals, for example, 3622614 + ... + 3623477.

It is an arithmetic number, because the mean of its divisors is an integer number (224628852).

Almost surely, 2^3130311312 is an apocalyptic number.

It is an amenable number.

3130311312 is an abundant number, since it is smaller than the sum of its proper divisors (5854842768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3130311312 is a wasteful number, since it uses less digits than its factorization.

3130311312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7246108 (or 7246096 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 3130311312 is about 55949.1850878992. The cubic root of 3130311312 is about 1462.8366867184.

Adding to 3130311312 its reverse (2131130313), we get a palindrome (5261441625).

The spelling of 3130311312 in words is "three billion, one hundred thirty million, three hundred eleven thousand, three hundred twelve".