23321313 has 12 divisors (see below), whose sum is σ = 33996820. Its totient is φ = 15404256.

The previous prime is 23321273. The next prime is 23321321. The reversal of 23321313 is 31312332.

It can be written as a sum of positive squares in 2 ways, for example, as 10810944 + 12510369 = 3288^2 + 3537^2 .

It is a de Polignac number, because none of the positive numbers 2^k-23321313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23321323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10906 + ... + 12867.

Almost surely, 2^23321313 is an apocalyptic number.

It is an amenable number.

23321313 is a deficient number, since it is larger than the sum of its proper divisors (10675507).

23321313 is a wasteful number, since it uses less digits than its factorization.

23321313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23888 (or 23885 counting only the distinct ones).

The product of its digits is 324, while the sum is 18.

The square root of 23321313 is about 4829.2145324059. The cubic root of 23321313 is about 285.7048849169.

Adding to 23321313 its reverse (31312332), we get a palindrome (54633645).

The spelling of 23321313 in words is "twenty-three million, three hundred twenty-one thousand, three hundred thirteen".