23023789531 has 4 divisors (see below), whose sum is σ = 23047356312. Its totient is φ = 23000222752.

The previous prime is 23023789507. The next prime is 23023789583. The reversal of 23023789531 is 13598732032.

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 23023789531 - 2²³ = 23015400923 is a prime.

It is a super-2 number, since 2×23023789531² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23023789031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11781925 + ... + 11783878.

It is an arithmetic number, because the mean of its divisors is an integer number (5761839078).

Almost surely, 2^23023789531 is an apocalyptic number.

23023789531 is a deficient number, since it is larger than the sum of its proper divisors (23566781).

23023789531 is an equidigital number, since it uses as much as digits as its factorization.

23023789531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23566780.

The product of its (nonzero) digits is 272160, while the sum is 43.

The spelling of 23023789531 in words is "twenty-three billion, twenty-three million, seven hundred eighty-nine thousand, five hundred thirty-one".