317117111 has 2 divisors, whose sum is σ = 317117112. Its totient is φ = 317117110.

The previous prime is 317117093. The next prime is 317117149. The reversal of 317117111 is 111711713.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-317117111 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (317117161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158558555 + 158558556.

It is an arithmetic number, because the mean of its divisors is an integer number (158558556).

Almost surely, 2^317117111 is an apocalyptic number.

317117111 is a deficient number, since it is larger than the sum of its proper divisors (1).

317117111 is an equidigital number, since it uses as much as digits as its factorization.

317117111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 147, while the sum is 23.

The square root of 317117111 is about 17807.7823156057. The cubic root of 317117111 is about 681.9301498223.

Adding to 317117111 its reverse (111711713), we get a palindrome (428828824).

The spelling of 317117111 in words is "three hundred seventeen million, one hundred seventeen thousand, one hundred eleven".