23315317 has 4 divisors (see below), whose sum is σ = 24067456. Its totient is φ = 22563180.

The previous prime is 23315293. The next prime is 23315321. The reversal of 23315317 is 71351332.

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.

It is a cyclic number.

It is not a de Polignac number, because 23315317 - 2¹⁵ = 23282549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23315291 and 23315300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23315387) 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, 376023 + ... + 376084.

It is an arithmetic number, because the mean of its divisors is an integer number (6016864).

Almost surely, 2^23315317 is an apocalyptic number.

It is an amenable number.

23315317 is a deficient number, since it is larger than the sum of its proper divisors (752139).

23315317 is an equidigital number, since it uses as much as digits as its factorization.

23315317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752138.

The product of its digits is 1890, while the sum is 25.

The square root of 23315317 is about 4828.5936876072. The cubic root of 23315317 is about 285.6803975403.

Adding to 23315317 its reverse (71351332), we get a palindrome (94666649).

It can be divided in two parts, 23315 and 317, that added together give a palindrome (23632).

The spelling of 23315317 in words is "twenty-three million, three hundred fifteen thousand, three hundred seventeen".