320111353 has 2 divisors, whose sum is σ = 320111354. Its totient is φ = 320111352.

The previous prime is 320111339. The next prime is 320111369. The reversal of 320111353 is 353111023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 254306809 + 65804544 = 15947^2 + 8112^2 .

It is an emirp because it is prime and its reverse (353111023) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320111353 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 320111353.

It is not a weakly prime, because it can be changed into another prime (320111333) 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, 160055676 + 160055677.

It is an arithmetic number, because the mean of its divisors is an integer number (160055677).

Almost surely, 2^320111353 is an apocalyptic number.

It is an amenable number.

320111353 is a deficient number, since it is larger than the sum of its proper divisors (1).

320111353 is an equidigital number, since it uses as much as digits as its factorization.

320111353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 320111353 is about 17891.6559602514. The cubic root of 320111353 is about 684.0697073663.

Adding to 320111353 its reverse (353111023), we get a palindrome (673222376).

The spelling of 320111353 in words is "three hundred twenty million, one hundred eleven thousand, three hundred fifty-three".