320341361 has 2 divisors, whose sum is σ = 320341362. Its totient is φ = 320341360.

The previous prime is 320341339. The next prime is 320341367. The reversal of 320341361 is 163143023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 187169761 + 133171600 = 13681^2 + 11540^2 .

It is an emirp because it is prime and its reverse (163143023) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320341361 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (320341367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160170680 + 160170681.

It is an arithmetic number, because the mean of its divisors is an integer number (160170681).

Almost surely, 2^320341361 is an apocalyptic number.

It is an amenable number.

320341361 is a deficient number, since it is larger than the sum of its proper divisors (1).

320341361 is an equidigital number, since it uses as much as digits as its factorization.

320341361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 320341361 is about 17898.0826068046. The cubic root of 320341361 is about 684.2335085293.

Adding to 320341361 its reverse (163143023), we get a palindrome (483484384).

The spelling of 320341361 in words is "three hundred twenty million, three hundred forty-one thousand, three hundred sixty-one".