317130823 has 2 divisors, whose sum is σ = 317130824. Its totient is φ = 317130822.

The previous prime is 317130791. The next prime is 317130851. The reversal of 317130823 is 328031713.

It is an a-pointer prime, because the next prime (317130851) can be obtained adding 317130823 to its sum of digits (28).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 317130823 - 2⁵ = 317130791 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 317130791 and 317130800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (317133823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158565411 + 158565412.

It is an arithmetic number, because the mean of its divisors is an integer number (158565412).

Almost surely, 2^317130823 is an apocalyptic number.

317130823 is a deficient number, since it is larger than the sum of its proper divisors (1).

317130823 is an equidigital number, since it uses as much as digits as its factorization.

317130823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 317130823 is about 17808.1673116579. The cubic root of 317130823 is about 681.9399784640.

The spelling of 317130823 in words is "three hundred seventeen million, one hundred thirty thousand, eight hundred twenty-three".