317031223 has 8 divisors (see below), whose sum is σ = 321231456. Its totient is φ = 312852000.

The previous prime is 317031193. The next prime is 317031227. The reversal of 317031223 is 322130713.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-317031223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 317031194 and 317031203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317031227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26365 + ... + 36457.

It is an arithmetic number, because the mean of its divisors is an integer number (40153932).

Almost surely, 2^317031223 is an apocalyptic number.

317031223 is a deficient number, since it is larger than the sum of its proper divisors (4200233).

317031223 is a wasteful number, since it uses less digits than its factorization.

317031223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10505.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 317031223 is about 17805.3706223712. The cubic root of 317031223 is about 681.8685796083.

Adding to 317031223 its reverse (322130713), we get a palindrome (639161936).

The spelling of 317031223 in words is "three hundred seventeen million, thirty-one thousand, two hundred twenty-three".