320332213 has 8 divisors (see below), whose sum is σ = 330210432. Its totient is φ = 310581696.

The previous prime is 320332211. The next prime is 320332217. The reversal of 320332213 is 312233023.

It is a happy number.

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 320332213 - 2¹ = 320332211 is a prime.

It is a super-2 number, since 2×320332213² = 205225453370954738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320332211) 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, 26820 + ... + 36877.

It is an arithmetic number, because the mean of its divisors is an integer number (41276304).

Almost surely, 2^320332213 is an apocalyptic number.

It is an amenable number.

320332213 is a deficient number, since it is larger than the sum of its proper divisors (9878219).

320332213 is a wasteful number, since it uses less digits than its factorization.

320332213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63851.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 320332213 is about 17897.8270468792. The cubic root of 320332213 is about 684.2269952402.

Adding to 320332213 its reverse (312233023), we get a palindrome (632565236).

The spelling of 320332213 in words is "three hundred twenty million, three hundred thirty-two thousand, two hundred thirteen".