442433443121 has 2 divisors, whose sum is σ = 442433443122. Its totient is φ = 442433443120.

The previous prime is 442433443117. The next prime is 442433443171. The reversal of 442433443121 is 121344334244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 435567000625 + 6866442496 = 659975^2 + 82864^2 .

It is a cyclic number.

It is not a de Polignac number, because 442433443121 - 2² = 442433443117 is a prime.

It is not a weakly prime, because it can be changed into another prime (442433443171) 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, 221216721560 + 221216721561.

It is an arithmetic number, because the mean of its divisors is an integer number (221216721561).

Almost surely, 2^442433443121 is an apocalyptic number.

It is an amenable number.

442433443121 is a deficient number, since it is larger than the sum of its proper divisors (1).

442433443121 is an equidigital number, since it uses as much as digits as its factorization.

442433443121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 110592, while the sum is 35.

Adding to 442433443121 its reverse (121344334244), we get a palindrome (563777777365).

The spelling of 442433443121 in words is "four hundred forty-two billion, four hundred thirty-three million, four hundred forty-three thousand, one hundred twenty-one".