321312443423 has 8 divisors (see below), whose sum is σ = 322521981600. Its totient is φ = 320104556640.

The previous prime is 321312443393. The next prime is 321312443443. The reversal of 321312443423 is 324344213123.

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 321312443423 - 2²⁰ = 321311394847 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 321312443423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321312443443) 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 7 ways as a sum of consecutive naturals, for example, 22283 + ... + 801948.

It is an arithmetic number, because the mean of its divisors is an integer number (40315247700).

Almost surely, 2^321312443423 is an apocalyptic number.

321312443423 is a deficient number, since it is larger than the sum of its proper divisors (1209538177).

321312443423 is a wasteful number, since it uses less digits than its factorization.

321312443423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825697.

The product of its digits is 41472, while the sum is 32.

Adding to 321312443423 its reverse (324344213123), we get a palindrome (645656656546).

The spelling of 321312443423 in words is "three hundred twenty-one billion, three hundred twelve million, four hundred forty-three thousand, four hundred twenty-three".