320143213 has 8 divisors (see below), whose sum is σ = 352788128. Its totient is φ = 288643824.

The previous prime is 320143199. The next prime is 320143223. The reversal of 320143213 is 312341023.

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 320143213 - 2⁵ = 320143181 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 (320143223) 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, 285795 + ... + 286912.

It is an arithmetic number, because the mean of its divisors is an integer number (44098516).

Almost surely, 2^320143213 is an apocalyptic number.

It is an amenable number.

320143213 is a deficient number, since it is larger than the sum of its proper divisors (32644915).

320143213 is a wasteful number, since it uses less digits than its factorization.

320143213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572763.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 320143213 is about 17892.5462972714. The cubic root of 320143213 is about 684.0924012796.

Adding to 320143213 its reverse (312341023), we get a palindrome (632484236).

It can be divided in two parts, 320143 and 213, that added together give a square (320356 = 566²).

The spelling of 320143213 in words is "three hundred twenty million, one hundred forty-three thousand, two hundred thirteen".