332120321 has 24 divisors (see below), whose sum is σ = 369982080. Its totient is φ = 297897600.

The previous prime is 332120317. The next prime is 332120333. The reversal of 332120321 is 123021233.

It is not a de Polignac number, because 332120321 - 2² = 332120317 is a prime.

It is a super-2 number, since 2×332120321² = 220607815242286082, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 332120321.

It is not an unprimeable number, because it can be changed into a prime (332120021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1067756 + ... + 1068066.

It is an arithmetic number, because the mean of its divisors is an integer number (15415920).

Almost surely, 2^332120321 is an apocalyptic number.

It is an amenable number.

332120321 is a deficient number, since it is larger than the sum of its proper divisors (37861759).

332120321 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (332120320) it forms an eRAP, since the sums of their prime factors are consecutive (496 and 497).

332120321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497 (or 484 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 332120321 is about 18224.1685955766. The cubic root of 332120321 is about 692.5191962948.

Adding to 332120321 its reverse (123021233), we get a palindrome (455141554).

The spelling of 332120321 in words is "three hundred thirty-two million, one hundred twenty thousand, three hundred twenty-one".