12044321553 has 16 divisors (see below), whose sum is σ = 17615812032. Its totient is φ = 7259256000.

The previous prime is 12044321539. The next prime is 12044321563. The reversal of 12044321553 is 35512344021.

12044321553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12044321553 - 2⁸ = 12044321297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12044321553.

It is not an unprimeable number, because it can be changed into a prime (12044321503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1002258 + ... + 1014203.

It is an arithmetic number, because the mean of its divisors is an integer number (1100988252).

Almost surely, 2^12044321553 is an apocalyptic number.

It is an amenable number.

12044321553 is a deficient number, since it is larger than the sum of its proper divisors (5571490479).

12044321553 is a wasteful number, since it uses less digits than its factorization.

12044321553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2016656.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 12044321553 its reverse (35512344021), we get a palindrome (47556665574).

The spelling of 12044321553 in words is "twelve billion, forty-four million, three hundred twenty-one thousand, five hundred fifty-three".