320003221332 has 12 divisors (see below), whose sum is σ = 746674183136. Its totient is φ = 106667740440.

The previous prime is 320003221327. The next prime is 320003221339. The reversal of 320003221332 is 233122300023.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 320003221299 and 320003221308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320003221339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13333467544 + ... + 13333467567.

Almost surely, 2^320003221332 is an apocalyptic number.

It is an amenable number.

320003221332 is an abundant number, since it is smaller than the sum of its proper divisors (426670961804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320003221332 is a wasteful number, since it uses less digits than its factorization.

320003221332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26666935118 (or 26666935116 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 320003221332 its reverse (233122300023), we get a palindrome (553125521355).

The spelling of 320003221332 in words is "three hundred twenty billion, three million, two hundred twenty-one thousand, three hundred thirty-two".