12311224023 has 16 divisors (see below), whose sum is σ = 18894928640. Its totient is φ = 6984372096.

The previous prime is 12311224001. The next prime is 12311224061. The reversal of 12311224023 is 32042211321.

It is not a de Polignac number, because 12311224023 - 2⁶ = 12311223959 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311220023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2105890 + ... + 2111727.

It is an arithmetic number, because the mean of its divisors is an integer number (1180933040).

Almost surely, 2^12311224023 is an apocalyptic number.

12311224023 is a deficient number, since it is larger than the sum of its proper divisors (6583704617).

12311224023 is a wasteful number, since it uses less digits than its factorization.

12311224023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4217766.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 12311224023 its reverse (32042211321), we get a palindrome (44353435344).

The spelling of 12311224023 in words is "twelve billion, three hundred eleven million, two hundred twenty-four thousand, twenty-three".