23131112203 has 4 divisors (see below), whose sum is σ = 24491765880. Its totient is φ = 21770458528.

The previous prime is 23131112197. The next prime is 23131112209. The reversal of 23131112203 is 30221113132.

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

It is an interprime number because it is at equal distance from previous prime (23131112197) and next prime (23131112209).

It is a cyclic number.

It is not a de Polignac number, because 23131112203 - 2⁵ = 23131112171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23131112209) 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, 680326813 + ... + 680326846.

It is an arithmetic number, because the mean of its divisors is an integer number (6122941470).

Almost surely, 2^23131112203 is an apocalyptic number.

23131112203 is a deficient number, since it is larger than the sum of its proper divisors (1360653677).

23131112203 is a wasteful number, since it uses less digits than its factorization.

23131112203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360653676.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 23131112203 its reverse (30221113132), we get a palindrome (53352225335).

The spelling of 23131112203 in words is "twenty-three billion, one hundred thirty-one million, one hundred twelve thousand, two hundred three".