23213232333021 has 16 divisors (see below), whose sum is σ = 32748783381440. Its totient is φ = 14585025162240.

The previous prime is 23213232332989. The next prime is 23213232333029. The reversal of 23213232333021 is 12033323231232.

It is not a de Polignac number, because 23213232333021 - 2⁵ = 23213232332989 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 23213232333021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23213232333029) 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, 1055040010 + ... + 1055062011.

It is an arithmetic number, because the mean of its divisors is an integer number (2046798961340).

Almost surely, 2^{23213232333021} is an apocalyptic number.

It is an amenable number.

23213232333021 is a deficient number, since it is larger than the sum of its proper divisors (9535551048419).

23213232333021 is a wasteful number, since it uses less digits than its factorization.

23213232333021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2110102236.

The product of its (nonzero) digits is 23328, while the sum is 30.

Adding to 23213232333021 its reverse (12033323231232), we get a palindrome (35246555564253).

The spelling of 23213232333021 in words is "twenty-three trillion, two hundred thirteen billion, two hundred thirty-two million, three hundred thirty-three thousand, twenty-one".