23142435839 has 4 divisors (see below), whose sum is σ = 23147776224. Its totient is φ = 23137095456.

The previous prime is 23142435817. The next prime is 23142435851. The reversal of 23142435839 is 93853424132.

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

It is a cyclic number.

It is not a de Polignac number, because 23142435839 - 2⁸ = 23142435583 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23142435839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23142435889) 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, 2663687 + ... + 2672360.

It is an arithmetic number, because the mean of its divisors is an integer number (5786944056).

Almost surely, 2^23142435839 is an apocalyptic number.

23142435839 is a deficient number, since it is larger than the sum of its proper divisors (5340385).

23142435839 is an equidigital number, since it uses as much as digits as its factorization.

23142435839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5340384.

The product of its digits is 622080, while the sum is 44.

The spelling of 23142435839 in words is "twenty-three billion, one hundred forty-two million, four hundred thirty-five thousand, eight hundred thirty-nine".