442322123312 has 20 divisors (see below), whose sum is σ = 869790147576. Its totient is φ = 217860149760.

The previous prime is 442322123251. The next prime is 442322123317. The reversal of 442322123312 is 213321223244.

It is a super-2 number, since 2×442322123312² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (442322123317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206305889 + ... + 206308032.

Almost surely, 2^442322123312 is an apocalyptic number.

It is an amenable number.

442322123312 is a deficient number, since it is larger than the sum of its proper divisors (427468024264).

442322123312 is a wasteful number, since it uses less digits than its factorization.

442322123312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412613996 (or 412613990 counting only the distinct ones).

The product of its digits is 13824, while the sum is 29.

Adding to 442322123312 its reverse (213321223244), we get a palindrome (655643346556).

The spelling of 442322123312 in words is "four hundred forty-two billion, three hundred twenty-two million, one hundred twenty-three thousand, three hundred twelve".