313012131 has 4 divisors (see below), whose sum is σ = 417349512. Its totient is φ = 208674752.

The previous prime is 313012127. The next prime is 313012153. The reversal of 313012131 is 131210313.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 313012131 - 2² = 313012127 is a prime.

It is a super-2 number, since 2×313012131² = 195953188306322322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 313012131.

It is not an unprimeable number, because it can be changed into a prime (313012171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52168686 + ... + 52168691.

It is an arithmetic number, because the mean of its divisors is an integer number (104337378).

Almost surely, 2^313012131 is an apocalyptic number.

313012131 is a deficient number, since it is larger than the sum of its proper divisors (104337381).

313012131 is a wasteful number, since it uses less digits than its factorization.

313012131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104337380.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 313012131 is about 17692.1488519626. The cubic root of 313012131 is about 678.9749051366.

Adding to 313012131 its reverse (131210313), we get a palindrome (444222444).

The spelling of 313012131 in words is "three hundred thirteen million, twelve thousand, one hundred thirty-one".