12401244023 has 4 divisors (see below), whose sum is σ = 14172850320. Its totient is φ = 10629637728.

The previous prime is 12401243993. The next prime is 12401244041. The reversal of 12401244023 is 32044210421.

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 12401244023 - 2²⁰ = 12400195447 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12401244023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12401244073) 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 3 ways as a sum of consecutive naturals, for example, 885803138 + ... + 885803151.

It is an arithmetic number, because the mean of its divisors is an integer number (3543212580).

Almost surely, 2^12401244023 is an apocalyptic number.

12401244023 is a deficient number, since it is larger than the sum of its proper divisors (1771606297).

12401244023 is an equidigital number, since it uses as much as digits as its factorization.

12401244023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1771606296.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 12401244023 its reverse (32044210421), we get a palindrome (44445454444).

The spelling of 12401244023 in words is "twelve billion, four hundred one million, two hundred forty-four thousand, twenty-three".