313044552131 has 4 divisors (see below), whose sum is σ = 313825212264. Its totient is φ = 312263892000.

The previous prime is 313044552071. The next prime is 313044552133. The reversal of 313044552131 is 131255440313.

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 313044552131 - 2²² = 313040357827 is a prime.

It is a super-2 number, since 2×313044552131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313044552133) 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, 390329465 + ... + 390330266.

It is an arithmetic number, because the mean of its divisors is an integer number (78456303066).

Almost surely, 2^313044552131 is an apocalyptic number.

313044552131 is a deficient number, since it is larger than the sum of its proper divisors (780660133).

313044552131 is an equidigital number, since it uses as much as digits as its factorization.

313044552131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780660132.

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 313044552131 its reverse (131255440313), we get a palindrome (444299992444).

The spelling of 313044552131 in words is "three hundred thirteen billion, forty-four million, five hundred fifty-two thousand, one hundred thirty-one".