442420030111 has 2 divisors, whose sum is σ = 442420030112. Its totient is φ = 442420030110.

The previous prime is 442420030097. The next prime is 442420030133. The reversal of 442420030111 is 111030024244.

It is a happy number.

It is an a-pointer prime, because the next prime (442420030133) can be obtained adding 442420030111 to its sum of digits (22).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 442420030111 - 2⁹ = 442420029599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442420030411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221210015055 + 221210015056.

It is an arithmetic number, because the mean of its divisors is an integer number (221210015056).

Almost surely, 2^442420030111 is an apocalyptic number.

442420030111 is a deficient number, since it is larger than the sum of its proper divisors (1).

442420030111 is an equidigital number, since it uses as much as digits as its factorization.

442420030111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 442420030111 its reverse (111030024244), we get a palindrome (553450054355).

The spelling of 442420030111 in words is "four hundred forty-two billion, four hundred twenty million, thirty thousand, one hundred eleven".