442431001123 has 2 divisors, whose sum is σ = 442431001124. Its totient is φ = 442431001122.

The previous prime is 442431001081. The next prime is 442431001141. The reversal of 442431001123 is 321100134244.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 442431001123 - 2¹⁷ = 442430870051 is a prime.

It is a super-2 number, since 2×442431001123² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (442431001423) 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, 221215500561 + 221215500562.

It is an arithmetic number, because the mean of its divisors is an integer number (221215500562).

Almost surely, 2^442431001123 is an apocalyptic number.

442431001123 is a deficient number, since it is larger than the sum of its proper divisors (1).

442431001123 is an equidigital number, since it uses as much as digits as its factorization.

442431001123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 442431001123 its reverse (321100134244), we get a palindrome (763531135367).

The spelling of 442431001123 in words is "four hundred forty-two billion, four hundred thirty-one million, one thousand, one hundred twenty-three".