23231032013021 has 4 divisors (see below), whose sum is σ = 26549750872032. Its totient is φ = 19912313154012.

The previous prime is 23231032012957. The next prime is 23231032013039. The reversal of 23231032013021 is 12031023013232.

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 23231032013021 - 2⁶ = 23231032012957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23231032003021) 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, 1659359429495 + ... + 1659359429508.

It is an arithmetic number, because the mean of its divisors is an integer number (6637437718008).

Almost surely, 2^{23231032013021} is an apocalyptic number.

It is an amenable number.

23231032013021 is a deficient number, since it is larger than the sum of its proper divisors (3318718859011).

23231032013021 is an equidigital number, since it uses as much as digits as its factorization.

23231032013021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3318718859010.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 23231032013021 its reverse (12031023013232), we get a palindrome (35262055026253).

The spelling of 23231032013021 in words is "twenty-three trillion, two hundred thirty-one billion, thirty-two million, thirteen thousand, twenty-one".