12023512023 has 4 divisors (see below), whose sum is σ = 16031349368. Its totient is φ = 8015674680.

The previous prime is 12023512009. The next prime is 12023512063. The reversal of 12023512023 is 32021532021.

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

It is not a de Polignac number, because 12023512023 - 2¹⁸ = 12023249879 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 (12023512063) 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, 2003918668 + ... + 2003918673.

It is an arithmetic number, because the mean of its divisors is an integer number (4007837342).

Almost surely, 2^12023512023 is an apocalyptic number.

12023512023 is a deficient number, since it is larger than the sum of its proper divisors (4007837345).

12023512023 is an equidigital number, since it uses as much as digits as its factorization.

12023512023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4007837344.

The product of its (nonzero) digits is 720, while the sum is 21.

The spelling of 12023512023 in words is "twelve billion, twenty-three million, five hundred twelve thousand, twenty-three".