23133302010021 has 16 divisors (see below), whose sum is σ = 35258567396864. Its totient is φ = 13216096666224.

The previous prime is 23133302010001. The next prime is 23133302010031. The reversal of 23133302010021 is 12001020333132.

It is not a de Polignac number, because 23133302010021 - 2⁵ = 23133302009989 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 23133302010021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23133302010001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122113675 + ... + 122302968.

It is an arithmetic number, because the mean of its divisors is an integer number (2203660462304).

Almost surely, 2^{23133302010021} is an apocalyptic number.

23133302010021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23133302010021 is a deficient number, since it is larger than the sum of its proper divisors (12125265386843).

23133302010021 is a wasteful number, since it uses less digits than its factorization.

23133302010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244421160.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 23133302010021 its reverse (12001020333132), we get a palindrome (35134322343153).

The spelling of 23133302010021 in words is "twenty-three trillion, one hundred thirty-three billion, three hundred two million, ten thousand, twenty-one".