320620301 has 2 divisors, whose sum is σ = 320620302. Its totient is φ = 320620300.

The previous prime is 320620283. The next prime is 320620327. The reversal of 320620301 is 103026023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 270635401 + 49984900 = 16451^2 + 7070^2 .

It is an emirp because it is prime and its reverse (103026023) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320620301 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 320620301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320620351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160310150 + 160310151.

It is an arithmetic number, because the mean of its divisors is an integer number (160310151).

Almost surely, 2^320620301 is an apocalyptic number.

It is an amenable number.

320620301 is a deficient number, since it is larger than the sum of its proper divisors (1).

320620301 is an equidigital number, since it uses as much as digits as its factorization.

320620301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 320620301 is about 17905.8733660216. The cubic root of 320620301 is about 684.4320516536.

Adding to 320620301 its reverse (103026023), we get a palindrome (423646324).

The spelling of 320620301 in words is "three hundred twenty million, six hundred twenty thousand, three hundred one".