21233323023121 has 96 divisors (see below), whose sum is σ = 24960006973440. Its totient is φ = 17906631600000.

The previous prime is 21233323023097. The next prime is 21233323023139. The reversal of 21233323023121 is 12132032333212.

It is a happy number.

It is not a de Polignac number, because 21233323023121 - 2¹¹ = 21233323021073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21233323023121.

It is not an unprimeable number, because it can be changed into a prime (21233323023161) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6082302186 + ... + 6082305676.

It is an arithmetic number, because the mean of its divisors is an integer number (260000072640).

Almost surely, 2^{21233323023121} is an apocalyptic number.

It is an amenable number.

21233323023121 is a deficient number, since it is larger than the sum of its proper divisors (3726683950319).

21233323023121 is a wasteful number, since it uses less digits than its factorization.

21233323023121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3859 (or 3836 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 21233323023121 its reverse (12132032333212), we get a palindrome (33365355356333).

The spelling of 21233323023121 in words is "twenty-one trillion, two hundred thirty-three billion, three hundred twenty-three million, twenty-three thousand, one hundred twenty-one".