313055131 has 4 divisors (see below), whose sum is σ = 320690664. Its totient is φ = 305419600.

The previous prime is 313055089. The next prime is 313055147. The reversal of 313055131 is 131550313.

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 313055131 - 2²¹ = 310957979 is a prime.

It is a super-2 number, since 2×313055131² = 196007030090854322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313055161) 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, 3817705 + ... + 3817786.

It is an arithmetic number, because the mean of its divisors is an integer number (80172666).

Almost surely, 2^313055131 is an apocalyptic number.

313055131 is a deficient number, since it is larger than the sum of its proper divisors (7635533).

313055131 is an equidigital number, since it uses as much as digits as its factorization.

313055131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7635532.

The product of its (nonzero) digits is 675, while the sum is 22.

The square root of 313055131 is about 17693.3640385315. The cubic root of 313055131 is about 679.0059950755.

The spelling of 313055131 in words is "three hundred thirteen million, fifty-five thousand, one hundred thirty-one".