23315313 has 16 divisors (see below), whose sum is σ = 37618560. Its totient is φ = 12539136.

The previous prime is 23315293. The next prime is 23315321. The reversal of 23315313 is 31351332.

It is not a de Polignac number, because 23315313 - 2¹⁶ = 23249777 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 23315313.

It is not an unprimeable number, because it can be changed into a prime (23315323) 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 in 15 ways as a sum of consecutive naturals, for example, 32298 + ... + 33011.

It is an arithmetic number, because the mean of its divisors is an integer number (2351160).

Almost surely, 2^23315313 is an apocalyptic number.

It is an amenable number.

23315313 is a deficient number, since it is larger than the sum of its proper divisors (14303247).

23315313 is a wasteful number, since it uses less digits than its factorization.

23315313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65336.

The product of its digits is 810, while the sum is 21.

The square root of 23315313 is about 4828.5932734079. The cubic root of 23315313 is about 285.6803812030.

Adding to 23315313 its reverse (31351332), we get a palindrome (54666645).

The spelling of 23315313 in words is "twenty-three million, three hundred fifteen thousand, three hundred thirteen".