23320014521 has 4 divisors (see below), whose sum is σ = 23320489344. Its totient is φ = 23319539700.

The previous prime is 23320014451. The next prime is 23320014559. The reversal of 23320014521 is 12541002332.

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 23320014521 - 2²² = 23315820217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23320014121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153965 + ... + 265226.

It is an arithmetic number, because the mean of its divisors is an integer number (5830122336).

Almost surely, 2^23320014521 is an apocalyptic number.

It is an amenable number.

23320014521 is a deficient number, since it is larger than the sum of its proper divisors (474823).

23320014521 is an equidigital number, since it uses as much as digits as its factorization.

23320014521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474822.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 23320014521 its reverse (12541002332), we get a palindrome (35861016853).

The spelling of 23320014521 in words is "twenty-three billion, three hundred twenty million, fourteen thousand, five hundred twenty-one".