23131123321233 has 16 divisors (see below), whose sum is σ = 30880133798400. Its totient is φ = 15401432592000.

The previous prime is 23131123321211. The next prime is 23131123321259. The reversal of 23131123321233 is 33212332113132.

It is not a de Polignac number, because 23131123321233 - 2³⁰ = 23130049579409 is a prime.

It is a super-2 number, since 2×23131123321233² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23131123321233.

It is not an unprimeable number, because it can be changed into a prime (23131123329233) 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, 56377333 + ... + 56786141.

It is an arithmetic number, because the mean of its divisors is an integer number (1930008362400).

Almost surely, 2^{23131123321233} is an apocalyptic number.

It is an amenable number.

23131123321233 is a deficient number, since it is larger than the sum of its proper divisors (7749010477167).

23131123321233 is a wasteful number, since it uses less digits than its factorization.

23131123321233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432392.

The product of its digits is 11664, while the sum is 30.

Adding to 23131123321233 its reverse (33212332113132), we get a palindrome (56343455434365).

The spelling of 23131123321233 in words is "twenty-three trillion, one hundred thirty-one billion, one hundred twenty-three million, three hundred twenty-one thousand, two hundred thirty-three".