23113013131 has 4 divisors (see below), whose sum is σ = 24890937232. Its totient is φ = 21335089032.

The previous prime is 23113013101. The next prime is 23113013149. The reversal of 23113013131 is 13131031132.

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 23113013131 - 2⁷ = 23113013003 is a prime.

It is a super-2 number, since 2×23113013131² (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 = 23113013099 and 23113013108.

It is not an unprimeable number, because it can be changed into a prime (23113013101) 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, 888962031 + ... + 888962056.

It is an arithmetic number, because the mean of its divisors is an integer number (6222734308).

Almost surely, 2^23113013131 is an apocalyptic number.

23113013131 is a deficient number, since it is larger than the sum of its proper divisors (1777924101).

23113013131 is a wasteful number, since it uses less digits than its factorization.

23113013131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1777924100.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 23113013131 its reverse (13131031132), we get a palindrome (36244044263).

The spelling of 23113013131 in words is "twenty-three billion, one hundred thirteen million, thirteen thousand, one hundred thirty-one".