442340421312323 has 16 divisors (see below), whose sum is σ = 460274657025120. Its totient is φ = 424587911215104.

The previous prime is 442340421312311. The next prime is 442340421312359. The reversal of 442340421312323 is 323213124043244.

It is a cyclic number.

It is not a de Polignac number, because 442340421312323 - 2²⁰ = 442340420263747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442340421392323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18345536 + ... + 34946237.

It is an arithmetic number, because the mean of its divisors is an integer number (28767166064070).

Almost surely, 2^{442340421312323} is an apocalyptic number.

442340421312323 is a deficient number, since it is larger than the sum of its proper divisors (17934235712797).

442340421312323 is a wasteful number, since it uses less digits than its factorization.

442340421312323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53293478.

The product of its (nonzero) digits is 331776, while the sum is 38.

Adding to 442340421312323 its reverse (323213124043244), we get a palindrome (765553545355567).

The spelling of 442340421312323 in words is "four hundred forty-two trillion, three hundred forty billion, four hundred twenty-one million, three hundred twelve thousand, three hundred twenty-three".