442421332334101 has 4 divisors (see below), whose sum is σ = 442463640973452. Its totient is φ = 442379023694752.

The previous prime is 442421332334077. The next prime is 442421332334171. The reversal of 442421332334101 is 101433233124244.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 390561386415876 + 51859945918225 = 19762626^2 + 7201385^2 .

It is a cyclic number.

It is not a de Polignac number, because 442421332334101 - 2²³ = 442421323945493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442421332334171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21154303990 + ... + 21154324903.

It is an arithmetic number, because the mean of its divisors is an integer number (110615910243363).

Almost surely, 2^{442421332334101} is an apocalyptic number.

It is an amenable number.

442421332334101 is a deficient number, since it is larger than the sum of its proper divisors (42308639351).

442421332334101 is a wasteful number, since it uses less digits than its factorization.

442421332334101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42308639350.

The product of its (nonzero) digits is 165888, while the sum is 37.

Adding to 442421332334101 its reverse (101433233124244), we get a palindrome (543854565458345).

The spelling of 442421332334101 in words is "four hundred forty-two trillion, four hundred twenty-one billion, three hundred thirty-two million, three hundred thirty-four thousand, one hundred one".