23247874231 has 4 divisors (see below), whose sum is σ = 23542151200. Its totient is φ = 22953597264.

The previous prime is 23247874219. The next prime is 23247874241. The reversal of 23247874231 is 13247874232.

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-23247874231 is a prime.

It is a super-2 number, since 2×23247874231² (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 (23247874201) 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, 147138366 + ... + 147138523.

It is an arithmetic number, because the mean of its divisors is an integer number (5885537800).

Almost surely, 2^23247874231 is an apocalyptic number.

23247874231 is a deficient number, since it is larger than the sum of its proper divisors (294276969).

23247874231 is an equidigital number, since it uses as much as digits as its factorization.

23247874231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294276968.

The product of its digits is 451584, while the sum is 43.

Subtracting from 23247874231 its reverse (13247874232), we obtain a palindrome (9999999999).

The spelling of 23247874231 in words is "twenty-three billion, two hundred forty-seven million, eight hundred seventy-four thousand, two hundred thirty-one".