442443312121 has 8 divisors (see below), whose sum is σ = 445083980544. Its totient is φ = 439808506800.

The previous prime is 442443312107. The next prime is 442443312127. The reversal of 442443312121 is 121213344244.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 442443312121 - 2²⁹ = 441906441209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442443312127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1314355 + ... + 1616296.

It is an arithmetic number, because the mean of its divisors is an integer number (55635497568).

Almost surely, 2^442443312121 is an apocalyptic number.

It is an amenable number.

442443312121 is a deficient number, since it is larger than the sum of its proper divisors (2640668423).

442443312121 is a wasteful number, since it uses less digits than its factorization.

442443312121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2931551.

The product of its digits is 18432, while the sum is 31.

Adding to 442443312121 its reverse (121213344244), we get a palindrome (563656656365).

The spelling of 442443312121 in words is "four hundred forty-two billion, four hundred forty-three million, three hundred twelve thousand, one hundred twenty-one".