442311042281 has 2 divisors, whose sum is σ = 442311042282. Its totient is φ = 442311042280.

The previous prime is 442311042227. The next prime is 442311042301. The reversal of 442311042281 is 182240113244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 310712597056 + 131598445225 = 557416^2 + 362765^2 .

It is a cyclic number.

It is not a de Polignac number, because 442311042281 - 2¹⁸ = 442310780137 is a prime.

It is a super-2 number, since 2×442311042281² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (442311042221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221155521140 + 221155521141.

It is an arithmetic number, because the mean of its divisors is an integer number (221155521141).

Almost surely, 2^442311042281 is an apocalyptic number.

It is an amenable number.

442311042281 is a deficient number, since it is larger than the sum of its proper divisors (1).

442311042281 is an equidigital number, since it uses as much as digits as its factorization.

442311042281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12288, while the sum is 32.

The spelling of 442311042281 in words is "four hundred forty-two billion, three hundred eleven million, forty-two thousand, two hundred eighty-one".