317320051 has 2 divisors, whose sum is σ = 317320052. Its totient is φ = 317320050.

The previous prime is 317320021. The next prime is 317320057. The reversal of 317320051 is 150023713.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 317320051 - 2¹¹ = 317318003 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (317320057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158660025 + 158660026.

It is an arithmetic number, because the mean of its divisors is an integer number (158660026).

Almost surely, 2^317320051 is an apocalyptic number.

317320051 is a deficient number, since it is larger than the sum of its proper divisors (1).

317320051 is an equidigital number, since it uses as much as digits as its factorization.

317320051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 317320051 is about 17813.4794748247. The cubic root of 317320051 is about 682.0755865175.

Adding to 317320051 its reverse (150023713), we get a palindrome (467343764).

The spelling of 317320051 in words is "three hundred seventeen million, three hundred twenty thousand, fifty-one".