1323420317 has 2 divisors, whose sum is σ = 1323420318. Its totient is φ = 1323420316.

The previous prime is 1323420311. The next prime is 1323420337. The reversal of 1323420317 is 7130243231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 922579876 + 400840441 = 30374^2 + 20021^2 .

It is a cyclic number.

It is not a de Polignac number, because 1323420317 - 2¹⁸ = 1323158173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1323420311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661710158 + 661710159.

It is an arithmetic number, because the mean of its divisors is an integer number (661710159).

Almost surely, 2^1323420317 is an apocalyptic number.

It is an amenable number.

1323420317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323420317 is an equidigital number, since it uses as much as digits as its factorization.

1323420317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 1323420317 is about 36378.8443604246. The cubic root of 1323420317 is about 1097.9079568123.

Adding to 1323420317 its reverse (7130243231), we get a palindrome (8453663548).

The spelling of 1323420317 in words is "one billion, three hundred twenty-three million, four hundred twenty thousand, three hundred seventeen".