317011213 has 4 divisors (see below), whose sum is σ = 317534080. Its totient is φ = 316488348.

The previous prime is 317011169. The next prime is 317011241. The reversal of 317011213 is 312110713.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 312110713 = 23 ⋅13570031.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-317011213 is a prime.

It is a super-2 number, since 2×317011213² = 200992218335462738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317011613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260523 + ... + 261736.

It is an arithmetic number, because the mean of its divisors is an integer number (79383520).

Almost surely, 2^317011213 is an apocalyptic number.

It is an amenable number.

317011213 is a deficient number, since it is larger than the sum of its proper divisors (522867).

317011213 is an equidigital number, since it uses as much as digits as its factorization.

317011213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522866.

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 317011213 is about 17804.8087043922. The cubic root of 317011213 is about 681.8542335162.

Adding to 317011213 its reverse (312110713), we get a palindrome (629121926).

The spelling of 317011213 in words is "three hundred seventeen million, eleven thousand, two hundred thirteen".