442330331023 has 8 divisors (see below), whose sum is σ = 505525650048. Its totient is φ = 379136329944.

The previous prime is 442330331017. The next prime is 442330331057. The reversal of 442330331023 is 320133033244.

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 442330331023 - 2²¹ = 442328233871 is a prime.

It is a super-2 number, since 2×442330331023² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 442330330982 and 442330331000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442330331423) 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, 544140 + ... + 1086622.

It is an arithmetic number, because the mean of its divisors is an integer number (63190706256).

Almost surely, 2^442330331023 is an apocalyptic number.

442330331023 is a deficient number, since it is larger than the sum of its proper divisors (63195319025).

442330331023 is a wasteful number, since it uses less digits than its factorization.

442330331023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658973.

The product of its (nonzero) digits is 15552, while the sum is 28.

Adding to 442330331023 its reverse (320133033244), we get a palindrome (762463364267).

The spelling of 442330331023 in words is "four hundred forty-two billion, three hundred thirty million, three hundred thirty-one thousand, twenty-three".