23013014220021 has 48 divisors (see below), whose sum is σ = 35736102028800. Its totient is φ = 13134660295680.

The previous prime is 23013014220013. The next prime is 23013014220029. The reversal of 23013014220021 is 12002241031032.

It is an interprime number because it is at equal distance from previous prime (23013014220013) and next prime (23013014220029).

It is not a de Polignac number, because 23013014220021 - 2³ = 23013014220013 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 23013014220021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23013014220029) 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 47 ways as a sum of consecutive naturals, for example, 1103784205 + ... + 1103805053.

It is an arithmetic number, because the mean of its divisors is an integer number (744502125600).

Almost surely, 2^{23013014220021} is an apocalyptic number.

23013014220021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23013014220021 is a deficient number, since it is larger than the sum of its proper divisors (12723087808779).

23013014220021 is a wasteful number, since it uses less digits than its factorization.

23013014220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29434 (or 29427 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 23013014220021 its reverse (12002241031032), we get a palindrome (35015255251053).

The spelling of 23013014220021 in words is "twenty-three trillion, thirteen billion, fourteen million, two hundred twenty thousand, twenty-one".