320323421332 has 24 divisors (see below), whose sum is σ = 597181830336. Its totient is φ = 149815640448.

The previous prime is 320323421317. The next prime is 320323421339. The reversal of 320323421332 is 233124323023.

It is a self number, because there is not a number n which added to its sum of digits gives 320323421332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320323421339) 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, 14438728 + ... + 14460895.

It is an arithmetic number, because the mean of its divisors is an integer number (24882576264).

Almost surely, 2^320323421332 is an apocalyptic number.

It is an amenable number.

320323421332 is a deficient number, since it is larger than the sum of its proper divisors (276858409004).

320323421332 is a wasteful number, since it uses less digits than its factorization.

320323421332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28899807 (or 28899805 counting only the distinct ones).

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

Adding to 320323421332 its reverse (233124323023), we get a palindrome (553447744355).

The spelling of 320323421332 in words is "three hundred twenty billion, three hundred twenty-three million, four hundred twenty-one thousand, three hundred thirty-two".