317128023 has 6 divisors (see below), whose sum is σ = 458073824. Its totient is φ = 211418676.

The previous prime is 317128001. The next prime is 317128033. The reversal of 317128023 is 320821713.

It is not a de Polignac number, because 317128023 - 2²⁴ = 300350807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317128033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17618215 + ... + 17618232.

Almost surely, 2^317128023 is an apocalyptic number.

317128023 is a deficient number, since it is larger than the sum of its proper divisors (140945801).

317128023 is a wasteful number, since it uses less digits than its factorization.

317128023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35236453 (or 35236450 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 317128023 is about 17808.0886958708. The cubic root of 317128023 is about 681.9379714715.

Adding to 317128023 its reverse (320821713), we get a palindrome (637949736).

The spelling of 317128023 in words is "three hundred seventeen million, one hundred twenty-eight thousand, twenty-three".