320335361 has 2 divisors, whose sum is σ = 320335362. Its totient is φ = 320335360.

The previous prime is 320335349. The next prime is 320335373. The reversal of 320335361 is 163533023.

It is a balanced prime because it is at equal distance from previous prime (320335349) and next prime (320335373).

It can be written as a sum of positive squares in only one way, i.e., 180741136 + 139594225 = 13444^2 + 11815^2 .

It is an emirp because it is prime and its reverse (163533023) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 320335361 - 2¹⁰ = 320334337 is a prime.

It is a super-2 number, since 2×320335361² = 205229487014000642, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 320335361.

It is not a weakly prime, because it can be changed into another prime (320335321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160167680 + 160167681.

It is an arithmetic number, because the mean of its divisors is an integer number (160167681).

Almost surely, 2^320335361 is an apocalyptic number.

It is an amenable number.

320335361 is a deficient number, since it is larger than the sum of its proper divisors (1).

320335361 is an equidigital number, since it uses as much as digits as its factorization.

320335361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 26.

The square root of 320335361 is about 17897.9149902998. The cubic root of 320335361 is about 684.2292366003.

Adding to 320335361 its reverse (163533023), we get a palindrome (483868384).

The spelling of 320335361 in words is "three hundred twenty million, three hundred thirty-five thousand, three hundred sixty-one".