442255440031 has 2 divisors, whose sum is σ = 442255440032. Its totient is φ = 442255440030.

The previous prime is 442255439999. The next prime is 442255440097. The reversal of 442255440031 is 130044552244.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 442255440031 - 2⁵ = 442255439999 is a prime.

It is a super-2 number, since 2×442255440031² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442255440331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221127720015 + 221127720016.

It is an arithmetic number, because the mean of its divisors is an integer number (221127720016).

Almost surely, 2^442255440031 is an apocalyptic number.

442255440031 is a deficient number, since it is larger than the sum of its proper divisors (1).

442255440031 is an equidigital number, since it uses as much as digits as its factorization.

442255440031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 76800, while the sum is 34.

Adding to 442255440031 its reverse (130044552244), we get a palindrome (572299992275).

The spelling of 442255440031 in words is "four hundred forty-two billion, two hundred fifty-five million, four hundred forty thousand, thirty-one".