442520235211 has 2 divisors, whose sum is σ = 442520235212. Its totient is φ = 442520235210.

The previous prime is 442520235163. The next prime is 442520235233. The reversal of 442520235211 is 112532025244.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 442520235211 - 2²¹ = 442518138059 is a prime.

It is not a weakly prime, because it can be changed into another prime (442520235271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221260117605 + 221260117606.

It is an arithmetic number, because the mean of its divisors is an integer number (221260117606).

Almost surely, 2^442520235211 is an apocalyptic number.

442520235211 is a deficient number, since it is larger than the sum of its proper divisors (1).

442520235211 is an equidigital number, since it uses as much as digits as its factorization.

442520235211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19200, while the sum is 31.

The spelling of 442520235211 in words is "four hundred forty-two billion, five hundred twenty million, two hundred thirty-five thousand, two hundred eleven".