23313020000021 has 4 divisors (see below), whose sum is σ = 23316695399712. Its totient is φ = 23309344600332.

The previous prime is 23313019999943. The next prime is 23313020000041. The reversal of 23313020000021 is 12000002031332.

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 23313020000021 - 2¹⁸ = 23313019737877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23313020000041) 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, 1837690331 + ... + 1837703016.

It is an arithmetic number, because the mean of its divisors is an integer number (5829173849928).

Almost surely, 2^{23313020000021} is an apocalyptic number.

It is an amenable number.

23313020000021 is a deficient number, since it is larger than the sum of its proper divisors (3675399691).

23313020000021 is an equidigital number, since it uses as much as digits as its factorization.

23313020000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3675399690.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 23313020000021 its reverse (12000002031332), we get a palindrome (35313022031353).

The spelling of 23313020000021 in words is "twenty-three trillion, three hundred thirteen billion, twenty million, twenty-one", and thus it is an aban number.