442431044433311 has 2 divisors, whose sum is σ = 442431044433312. Its totient is φ = 442431044433310.

The previous prime is 442431044433307. The next prime is 442431044433379. The reversal of 442431044433311 is 113334440134244.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 442431044433311 - 2² = 442431044433307 is a prime.

It is a super-2 number, since 2×442431044433311² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442431044493311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221215522216655 + 221215522216656.

It is an arithmetic number, because the mean of its divisors is an integer number (221215522216656).

Almost surely, 2^{442431044433311} is an apocalyptic number.

442431044433311 is a deficient number, since it is larger than the sum of its proper divisors (1).

442431044433311 is an equidigital number, since it uses as much as digits as its factorization.

442431044433311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 663552, while the sum is 41.

Adding to 442431044433311 its reverse (113334440134244), we get a palindrome (555765484567555).

The spelling of 442431044433311 in words is "four hundred forty-two trillion, four hundred thirty-one billion, forty-four million, four hundred thirty-three thousand, three hundred eleven".