21232331033123 has 96 divisors (see below), whose sum is σ = 26365107882240. Its totient is φ = 17024192962560.

The previous prime is 21232331033107. The next prime is 21232331033141. The reversal of 21232331033123 is 32133013323212.

It is not a de Polignac number, because 21232331033123 - 2⁴ = 21232331033107 is a prime.

It is a super-2 number, since 2×21232331033123² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21232331033723) 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, 4828819961 + ... + 4828824357.

It is an arithmetic number, because the mean of its divisors is an integer number (274636540440).

Almost surely, 2^{21232331033123} is an apocalyptic number.

21232331033123 is a deficient number, since it is larger than the sum of its proper divisors (5132776849117).

21232331033123 is a wasteful number, since it uses less digits than its factorization.

21232331033123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5485 (or 5478 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 29.

Adding to 21232331033123 its reverse (32133013323212), we get a palindrome (53365344356335).

The spelling of 21232331033123 in words is "twenty-one trillion, two hundred thirty-two billion, three hundred thirty-one million, thirty-three thousand, one hundred twenty-three".