320224213 has 2 divisors, whose sum is σ = 320224214. Its totient is φ = 320224212.

The previous prime is 320224199. The next prime is 320224231. The reversal of 320224213 is 312422023.

Together with next prime (320224231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 205262929 + 114961284 = 14327^2 + 10722^2 .

It is an emirp because it is prime and its reverse (312422023) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 320224213 - 2⁵ = 320224181 is a prime.

It is a super-3 number, since 3×320224213³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320224243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160112106 + 160112107.

It is an arithmetic number, because the mean of its divisors is an integer number (160112107).

Almost surely, 2^320224213 is an apocalyptic number.

It is an amenable number.

320224213 is a deficient number, since it is larger than the sum of its proper divisors (1).

320224213 is an equidigital number, since it uses as much as digits as its factorization.

320224213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 320224213 is about 17894.8096664927. The cubic root of 320224213 is about 684.1500908903.

Adding to 320224213 its reverse (312422023), we get a palindrome (632646236).

The spelling of 320224213 in words is "three hundred twenty million, two hundred twenty-four thousand, two hundred thirteen".