12043182921 has 16 divisors (see below), whose sum is σ = 20019836928. Its totient is φ = 6256198800.

The previous prime is 12043182787. The next prime is 12043182923. The reversal of 12043182921 is 12928134021.

12043182921 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 12043182921 - 2¹⁵ = 12043150153 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (12043182923) 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, 26067265 + ... + 26067726.

It is an arithmetic number, because the mean of its divisors is an integer number (1251239808).

Almost surely, 2^12043182921 is an apocalyptic number.

12043182921 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12043182921 is a deficient number, since it is larger than the sum of its proper divisors (7976654007).

12043182921 is a wasteful number, since it uses less digits than its factorization.

12043182921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52135012.

The product of its (nonzero) digits is 6912, while the sum is 33.

The spelling of 12043182921 in words is "twelve billion, forty-three million, one hundred eighty-two thousand, nine hundred twenty-one".