12044243191 has 2 divisors, whose sum is σ = 12044243192. Its totient is φ = 12044243190.

The previous prime is 12044243177. The next prime is 12044243251. The reversal of 12044243191 is 19134244021.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12044243191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12044243591) 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 as a sum of consecutive naturals, namely, 6022121595 + 6022121596.

It is an arithmetic number, because the mean of its divisors is an integer number (6022121596).

Almost surely, 2^12044243191 is an apocalyptic number.

12044243191 is a deficient number, since it is larger than the sum of its proper divisors (1).

12044243191 is an equidigital number, since it uses as much as digits as its factorization.

12044243191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 31.

The spelling of 12044243191 in words is "twelve billion, forty-four million, two hundred forty-three thousand, one hundred ninety-one".