21232331223323 has 12 divisors (see below), whose sum is σ = 24566333649480. Its totient is φ = 18286218276480.

The previous prime is 21232331223317. The next prime is 21232331223403. The reversal of 21232331223323 is 32332213323212.

It is not a de Polignac number, because 21232331223323 - 2²⁸ = 21232062787867 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21232331223323.

It is not an unprimeable number, because it can be changed into a prime (21232331223023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4617729590 + ... + 4617734187.

It is an arithmetic number, because the mean of its divisors is an integer number (2047194470790).

Almost surely, 2^{21232331223323} is an apocalyptic number.

21232331223323 is a deficient number, since it is larger than the sum of its proper divisors (3334002426157).

21232331223323 is a wasteful number, since it uses less digits than its factorization.

21232331223323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9235463818 (or 9235463807 counting only the distinct ones).

The product of its digits is 46656, while the sum is 32.

Adding to 21232331223323 its reverse (32332213323212), we get a palindrome (53564544546535).

The spelling of 21232331223323 in words is "twenty-one trillion, two hundred thirty-two billion, three hundred thirty-one million, two hundred twenty-three thousand, three hundred twenty-three".