23113631131 has 4 divisors (see below), whose sum is σ = 23121579600. Its totient is φ = 23105682664.

The previous prime is 23113631117. The next prime is 23113631173. The reversal of 23113631131 is 13113631132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23113631131 - 2⁷ = 23113631003 is a prime.

It is a super-2 number, since 2×23113631131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23113631096 and 23113631105.

It is not an unprimeable number, because it can be changed into a prime (23113631731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3969871 + ... + 3975688.

It is an arithmetic number, because the mean of its divisors is an integer number (5780394900).

Almost surely, 2^23113631131 is an apocalyptic number.

23113631131 is a deficient number, since it is larger than the sum of its proper divisors (7948469).

23113631131 is an equidigital number, since it uses as much as digits as its factorization.

23113631131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7948468.

The product of its digits is 972, while the sum is 25.

Subtracting from 23113631131 its reverse (13113631132), we obtain a palindrome (9999999999).

The spelling of 23113631131 in words is "twenty-three billion, one hundred thirteen million, six hundred thirty-one thousand, one hundred thirty-one".