23031551113 has 4 divisors (see below), whose sum is σ = 23035338448. Its totient is φ = 23027763780.

The previous prime is 23031551099. The next prime is 23031551161. The reversal of 23031551113 is 31115513032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23031551113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23031551183) 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, 1884531 + ... + 1896712.

It is an arithmetic number, because the mean of its divisors is an integer number (5758834612).

Almost surely, 2^23031551113 is an apocalyptic number.

It is an amenable number.

23031551113 is a deficient number, since it is larger than the sum of its proper divisors (3787335).

23031551113 is an equidigital number, since it uses as much as digits as its factorization.

23031551113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3787334.

The product of its (nonzero) digits is 1350, while the sum is 25.

The spelling of 23031551113 in words is "twenty-three billion, thirty-one million, five hundred fifty-one thousand, one hundred thirteen".