313112551 has 2 divisors, whose sum is σ = 313112552. Its totient is φ = 313112550.

The previous prime is 313112521. The next prime is 313112557. The reversal of 313112551 is 155211313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 313112551 - 2¹¹ = 313110503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313112557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156556275 + 156556276.

It is an arithmetic number, because the mean of its divisors is an integer number (156556276).

Almost surely, 2^313112551 is an apocalyptic number.

313112551 is a deficient number, since it is larger than the sum of its proper divisors (1).

313112551 is an equidigital number, since it uses as much as digits as its factorization.

313112551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 450, while the sum is 22.

The square root of 313112551 is about 17694.9866063809. The cubic root of 313112551 is about 679.0475065505.

Adding to 313112551 its reverse (155211313), we get a palindrome (468323864).

The spelling of 313112551 in words is "three hundred thirteen million, one hundred twelve thousand, five hundred fifty-one".