12002443091 has 2 divisors, whose sum is σ = 12002443092. Its totient is φ = 12002443090.

The previous prime is 12002443087. The next prime is 12002443097. The reversal of 12002443091 is 19034420021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12002443091 - 2² = 12002443087 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12002443091.

It is not a weakly prime, because it can be changed into another prime (12002443097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6001221545 + 6001221546.

It is an arithmetic number, because the mean of its divisors is an integer number (6001221546).

Almost surely, 2^12002443091 is an apocalyptic number.

12002443091 is a deficient number, since it is larger than the sum of its proper divisors (1).

12002443091 is an equidigital number, since it uses as much as digits as its factorization.

12002443091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The spelling of 12002443091 in words is "twelve billion, two million, four hundred forty-three thousand, ninety-one".