442411141021 has 4 divisors (see below), whose sum is σ = 442539119932. Its totient is φ = 442283162112.

The previous prime is 442411141019. The next prime is 442411141031. The reversal of 442411141021 is 120141114244.

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 97337136121 + 345074004900 = 311989^2 + 587430^2 .

It is a cyclic number.

It is not a de Polignac number, because 442411141021 - 2¹ = 442411141019 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 (442411141031) 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, 63984270 + ... + 63991183.

It is an arithmetic number, because the mean of its divisors is an integer number (110634779983).

Almost surely, 2^442411141021 is an apocalyptic number.

It is an amenable number.

442411141021 is a deficient number, since it is larger than the sum of its proper divisors (127978911).

442411141021 is a wasteful number, since it uses less digits than its factorization.

442411141021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127978910.

The product of its (nonzero) digits is 1024, while the sum is 25.

Adding to 442411141021 its reverse (120141114244), we get a palindrome (562552255265).

The spelling of 442411141021 in words is "four hundred forty-two billion, four hundred eleven million, one hundred forty-one thousand, twenty-one".