12003173844 has 12 divisors (see below), whose sum is σ = 28007405664. Its totient is φ = 4001057944.

The previous prime is 12003173843. The next prime is 12003173873. The reversal of 12003173844 is 44837130021.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12003173843) 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, 500132232 + ... + 500132255.

It is an arithmetic number, because the mean of its divisors is an integer number (2333950472).

Almost surely, 2^12003173844 is an apocalyptic number.

It is an amenable number.

12003173844 is an abundant number, since it is smaller than the sum of its proper divisors (16004231820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12003173844 is a wasteful number, since it uses less digits than its factorization.

12003173844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000264494 (or 1000264492 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The spelling of 12003173844 in words is "twelve billion, three million, one hundred seventy-three thousand, eight hundred forty-four".