320816341 has 2 divisors, whose sum is σ = 320816342. Its totient is φ = 320816340.

The previous prime is 320816339. The next prime is 320816347. The reversal of 320816341 is 143618023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 267453316 + 53363025 = 16354^2 + 7305^2 .

It is a cyclic number.

It is not a de Polignac number, because 320816341 - 2¹ = 320816339 is a prime.

Together with 320816339, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320816347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160408170 + 160408171.

It is an arithmetic number, because the mean of its divisors is an integer number (160408171).

Almost surely, 2^320816341 is an apocalyptic number.

It is an amenable number.

320816341 is a deficient number, since it is larger than the sum of its proper divisors (1).

320816341 is an equidigital number, since it uses as much as digits as its factorization.

320816341 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 320816341 is about 17911.3467109539. The cubic root of 320816341 is about 684.5715195552.

The spelling of 320816341 in words is "three hundred twenty million, eight hundred sixteen thousand, three hundred forty-one".