23320313321 has 4 divisors (see below), whose sum is σ = 23321171412. Its totient is φ = 23319455232.

The previous prime is 23320313299. The next prime is 23320313323. The reversal of 23320313321 is 12331302332.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4093440400 + 19226872921 = 63980^2 + 138661^2 .

It is a cyclic number.

It is not a de Polignac number, because 23320313321 - 2¹⁸ = 23320051177 is a prime.

It is a super-2 number, since 2×23320313321² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23320313323) 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, 386900 + ... + 443093.

It is an arithmetic number, because the mean of its divisors is an integer number (5830292853).

Almost surely, 2^23320313321 is an apocalyptic number.

It is an amenable number.

23320313321 is a deficient number, since it is larger than the sum of its proper divisors (858091).

23320313321 is an equidigital number, since it uses as much as digits as its factorization.

23320313321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858090.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 23320313321 its reverse (12331302332), we get a palindrome (35651615653).

The spelling of 23320313321 in words is "twenty-three billion, three hundred twenty million, three hundred thirteen thousand, three hundred twenty-one".