317115311 has 2 divisors, whose sum is σ = 317115312. Its totient is φ = 317115310.

The previous prime is 317115289. The next prime is 317115313. The reversal of 317115311 is 113511713.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 317115311 - 2⁶ = 317115247 is a prime.

Together with 317115313, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (317115313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158557655 + 158557656.

It is an arithmetic number, because the mean of its divisors is an integer number (158557656).

Almost surely, 2^317115311 is an apocalyptic number.

317115311 is a deficient number, since it is larger than the sum of its proper divisors (1).

317115311 is an equidigital number, since it uses as much as digits as its factorization.

317115311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 315, while the sum is 23.

The square root of 317115311 is about 17807.7317758327. The cubic root of 317115311 is about 681.9288595770.

The spelling of 317115311 in words is "three hundred seventeen million, one hundred fifteen thousand, three hundred eleven".