332020321 has 2 divisors, whose sum is σ = 332020322. Its totient is φ = 332020320.

The previous prime is 332020313. The next prime is 332020349. The reversal of 332020321 is 123020233.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 270240721 + 61779600 = 16439^2 + 7860^2 .

It is a cyclic number.

It is not a de Polignac number, because 332020321 - 2³ = 332020313 is a prime.

It is a super-2 number, since 2×332020321² = 220474987113886082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 332020295 and 332020304.

It is not a weakly prime, because it can be changed into another prime (332020121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166010160 + 166010161.

It is an arithmetic number, because the mean of its divisors is an integer number (166010161).

Almost surely, 2^332020321 is an apocalyptic number.

It is an amenable number.

332020321 is a deficient number, since it is larger than the sum of its proper divisors (1).

332020321 is an equidigital number, since it uses as much as digits as its factorization.

332020321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 332020321 is about 18221.4247796378. The cubic root of 332020321 is about 692.4496844674.

Adding to 332020321 its reverse (123020233), we get a palindrome (455040554).

The spelling of 332020321 in words is "three hundred thirty-two million, twenty thousand, three hundred twenty-one".