12444030091 has 2 divisors, whose sum is σ = 12444030092. Its totient is φ = 12444030090.

The previous prime is 12444030083. The next prime is 12444030097. The reversal of 12444030091 is 19003044421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12444030091 - 2³ = 12444030083 is a prime.

It is not a weakly prime, because it can be changed into another prime (12444030097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6222015045 + 6222015046.

It is an arithmetic number, because the mean of its divisors is an integer number (6222015046).

Almost surely, 2^12444030091 is an apocalyptic number.

12444030091 is a deficient number, since it is larger than the sum of its proper divisors (1).

12444030091 is an equidigital number, since it uses as much as digits as its factorization.

12444030091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 12444030091 in words is "twelve billion, four hundred forty-four million, thirty thousand, ninety-one".