320213 has 2 divisors, whose sum is σ = 320214. Its totient is φ = 320212.

The previous prime is 320209. The next prime is 320219. The reversal of 320213 is 312023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 178084 + 142129 = 422^2 + 377^2 .

It is an emirp because it is prime and its reverse (312023) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 320213 - 2² = 320209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 320194 and 320203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160106 + 160107.

It is an arithmetic number, because the mean of its divisors is an integer number (160107).

2³²⁰²¹³ is an apocalyptic number.

It is an amenable number.

320213 is a deficient number, since it is larger than the sum of its proper divisors (1).

320213 is an equidigital number, since it uses as much as digits as its factorization.

320213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 320213 is about 565.8736608113. The cubic root of 320213 is about 68.4142105377.

Adding to 320213 its reverse (312023), we get a palindrome (632236).

The spelling of 320213 in words is "three hundred twenty thousand, two hundred thirteen".