23113331551431 has 24 divisors (see below), whose sum is σ = 36609717205776. Its totient is φ = 13935498992640.

The previous prime is 23113331551397. The next prime is 23113331551433. The reversal of 23113331551431 is 13415513331132.

23113331551431 is a `hidden beast` number, since 2 + 3 + 1 + 1 + 33 + 31 + 551 + 43 + 1 = 666.

It is not a de Polignac number, because 23113331551431 - 2³⁰ = 23112257809607 is a prime.

It is a super-2 number, since 2×23113331551431² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23113331551433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 604820260 + ... + 604858473.

It is an arithmetic number, because the mean of its divisors is an integer number (1525404883574).

Almost surely, 2^{23113331551431} is an apocalyptic number.

23113331551431 is a deficient number, since it is larger than the sum of its proper divisors (13496385654345).

23113331551431 is a wasteful number, since it uses less digits than its factorization.

23113331551431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209678943 (or 1209678940 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

Adding to 23113331551431 its reverse (13415513331132), we get a palindrome (36528844882563).

The spelling of 23113331551431 in words is "twenty-three trillion, one hundred thirteen billion, three hundred thirty-one million, five hundred fifty-one thousand, four hundred thirty-one".