23130323031 has 4 divisors (see below), whose sum is σ = 30840430712. Its totient is φ = 15420215352.

The previous prime is 23130323011. The next prime is 23130323059. The reversal of 23130323031 is 13032303132.

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

It is not a de Polignac number, because 23130323031 - 2⁷ = 23130322903 is a prime.

It is a super-2 number, since 2×23130323031² (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 = 23130322989 and 23130323007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23130323011) 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, 3855053836 + ... + 3855053841.

It is an arithmetic number, because the mean of its divisors is an integer number (7710107678).

Almost surely, 2^23130323031 is an apocalyptic number.

23130323031 is a deficient number, since it is larger than the sum of its proper divisors (7710107681).

23130323031 is an equidigital number, since it uses as much as digits as its factorization.

23130323031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7710107680.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 23130323031 its reverse (13032303132), we get a palindrome (36162626163).

The spelling of 23130323031 in words is "twenty-three billion, one hundred thirty million, three hundred twenty-three thousand, thirty-one".