23112013031 has 4 divisors (see below), whose sum is σ = 23228154000. Its totient is φ = 22995872064.

The previous prime is 23112013021. The next prime is 23112013049. The reversal of 23112013031 is 13031021132.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23112013031 is a prime.

It is a super-2 number, since 2×23112013031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23112013021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58070186 + ... + 58070583.

It is an arithmetic number, because the mean of its divisors is an integer number (5807038500).

Almost surely, 2^23112013031 is an apocalyptic number.

23112013031 is a deficient number, since it is larger than the sum of its proper divisors (116140969).

23112013031 is a wasteful number, since it uses less digits than its factorization.

23112013031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116140968.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 23112013031 its reverse (13031021132), we get a palindrome (36143034163).

The spelling of 23112013031 in words is "twenty-three billion, one hundred twelve million, thirteen thousand, thirty-one".