23728118423 has 4 divisors (see below), whose sum is σ = 23729077680. Its totient is φ = 23727159168.

The previous prime is 23728118419. The next prime is 23728118471. The reversal of 23728118423 is 32481182732.

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 23728118423 - 2² = 23728118419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23728118473) 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, 441515 + ... + 492332.

It is an arithmetic number, because the mean of its divisors is an integer number (5932269420).

Almost surely, 2^23728118423 is an apocalyptic number.

23728118423 is a deficient number, since it is larger than the sum of its proper divisors (959257).

23728118423 is an equidigital number, since it uses as much as digits as its factorization.

23728118423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959256.

The product of its digits is 129024, while the sum is 41.

The spelling of 23728118423 in words is "twenty-three billion, seven hundred twenty-eight million, one hundred eighteen thousand, four hundred twenty-three".