12042443291 has 2 divisors, whose sum is σ = 12042443292. Its totient is φ = 12042443290.

The previous prime is 12042443233. The next prime is 12042443341. The reversal of 12042443291 is 19234424021.

12042443291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12042443291 - 2¹⁰ = 12042442267 is a prime.

It is not a weakly prime, because it can be changed into another prime (12042403291) 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 as a sum of consecutive naturals, namely, 6021221645 + 6021221646.

It is an arithmetic number, because the mean of its divisors is an integer number (6021221646).

Almost surely, 2^12042443291 is an apocalyptic number.

12042443291 is a deficient number, since it is larger than the sum of its proper divisors (1).

12042443291 is an equidigital number, since it uses as much as digits as its factorization.

12042443291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 12042443291 in words is "twelve billion, forty-two million, four hundred forty-three thousand, two hundred ninety-one".