23100131131021 has 16 divisors (see below), whose sum is σ = 26428543764480. Its totient is φ = 19778828010480.

The previous prime is 23100131130997. The next prime is 23100131131073. The reversal of 23100131131021 is 12013113100132.

It is not a de Polignac number, because 23100131131021 - 2²¹ = 23100129033869 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23100131131021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23100131131081) 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, 24761970 + ... + 25677916.

It is an arithmetic number, because the mean of its divisors is an integer number (1651783985280).

Almost surely, 2^{23100131131021} is an apocalyptic number.

It is an amenable number.

23100131131021 is a deficient number, since it is larger than the sum of its proper divisors (3328412633459).

23100131131021 is a wasteful number, since it uses less digits than its factorization.

23100131131021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919824.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 23100131131021 its reverse (12013113100132), we get a palindrome (35113244231153).

The spelling of 23100131131021 in words is "twenty-three trillion, one hundred billion, one hundred thirty-one million, one hundred thirty-one thousand, twenty-one".