1320302317 has 2 divisors, whose sum is σ = 1320302318. Its totient is φ = 1320302316.

The previous prime is 1320302311. The next prime is 1320302329. The reversal of 1320302317 is 7132030231.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1184323396 + 135978921 = 34414^2 + 11661^2 .

It is an emirp because it is prime and its reverse (7132030231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1320302317 - 2¹¹ = 1320300269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1320302311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660151158 + 660151159.

It is an arithmetic number, because the mean of its divisors is an integer number (660151159).

Almost surely, 2^1320302317 is an apocalyptic number.

It is an amenable number.

1320302317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320302317 is an equidigital number, since it uses as much as digits as its factorization.

1320302317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 1320302317 is about 36335.9645117616. The cubic root of 1320302317 is about 1097.0450490568.

Adding to 1320302317 its reverse (7132030231), we get a palindrome (8452332548).

The spelling of 1320302317 in words is "one billion, three hundred twenty million, three hundred two thousand, three hundred seventeen".