404144024123 has 16 divisors (see below), whose sum is σ = 471875212800. Its totient is φ = 345990046248.

The previous prime is 404144024101. The next prime is 404144024177. The reversal of 404144024123 is 321420441404.

It is not a de Polignac number, because 404144024123 - 2²⁰ = 404142975547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404144024023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 428711 + ... + 996032.

It is an arithmetic number, because the mean of its divisors is an integer number (29492200800).

Almost surely, 2^404144024123 is an apocalyptic number.

404144024123 is a deficient number, since it is larger than the sum of its proper divisors (67731188677).

404144024123 is an equidigital number, since it uses as much as digits as its factorization.

404144024123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1425591 (or 1425577 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 404144024123 its reverse (321420441404), we get a palindrome (725564465527).

The spelling of 404144024123 in words is "four hundred four billion, one hundred forty-four million, twenty-four thousand, one hundred twenty-three".