320003213 has 8 divisors (see below), whose sum is σ = 327646080. Its totient is φ = 312395200.

The previous prime is 320003191. The next prime is 320003219. The reversal of 320003213 is 312300023.

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 320003213 - 2⁸ = 320002957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320003219) 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, 10358 + ... + 27336.

It is an arithmetic number, because the mean of its divisors is an integer number (40955760).

Almost surely, 2^320003213 is an apocalyptic number.

It is an amenable number.

320003213 is a deficient number, since it is larger than the sum of its proper divisors (7642867).

320003213 is a wasteful number, since it uses less digits than its factorization.

320003213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17427.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 320003213 is about 17888.6336258530. The cubic root of 320003213 is about 683.9926678933.

Adding to 320003213 its reverse (312300023), we get a palindrome (632303236).

The spelling of 320003213 in words is "three hundred twenty million, three thousand, two hundred thirteen".