312700131 has 24 divisors (see below), whose sum is σ = 467357696. Its totient is φ = 201262320.

The previous prime is 312700123. The next prime is 312700211. The reversal of 312700131 is 131007213.

It is not a de Polignac number, because 312700131 - 2³ = 312700123 is a prime.

It is a super-2 number, since 2×312700131² = 195562743854834322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312700231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 144846 + ... + 146988.

Almost surely, 2^312700131 is an apocalyptic number.

312700131 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

312700131 is a deficient number, since it is larger than the sum of its proper divisors (154657565).

312700131 is a wasteful number, since it uses less digits than its factorization.

312700131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2703 (or 2700 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 18.

The square root of 312700131 is about 17683.3291831601. The cubic root of 312700131 is about 678.7492369984.

Adding to 312700131 its reverse (131007213), we get a palindrome (443707344).

The spelling of 312700131 in words is "three hundred twelve million, seven hundred thousand, one hundred thirty-one".