23531765923 has 4 divisors (see below), whose sum is σ = 23532330888. Its totient is φ = 23531200960.

The previous prime is 23531765897. The next prime is 23531765947. The reversal of 23531765923 is 32956713532.

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 23531765923 - 2¹⁷ = 23531634851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23531765123) 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, 214561 + ... + 305122.

It is an arithmetic number, because the mean of its divisors is an integer number (5883082722).

Almost surely, 2^23531765923 is an apocalyptic number.

23531765923 is a deficient number, since it is larger than the sum of its proper divisors (564965).

23531765923 is an equidigital number, since it uses as much as digits as its factorization.

23531765923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564964.

The product of its digits is 1020600, while the sum is 46.

The spelling of 23531765923 in words is "twenty-three billion, five hundred thirty-one million, seven hundred sixty-five thousand, nine hundred twenty-three".