1313218297 has 2 divisors, whose sum is σ = 1313218298. Its totient is φ = 1313218296.

The previous prime is 1313218279. The next prime is 1313218303. The reversal of 1313218297 is 7928123131.

Together with previous prime (1313218279) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1283144041 + 30074256 = 35821^2 + 5484^2 .

It is a cyclic number.

It is not a de Polignac number, because 1313218297 - 2¹¹ = 1313216249 is a prime.

It is not a weakly prime, because it can be changed into another prime (1313218217) 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, 656609148 + 656609149.

It is an arithmetic number, because the mean of its divisors is an integer number (656609149).

Almost surely, 2^1313218297 is an apocalyptic number.

It is an amenable number.

1313218297 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313218297 is an equidigital number, since it uses as much as digits as its factorization.

1313218297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 37.

The square root of 1313218297 is about 36238.3539499244. The cubic root of 1313218297 is about 1095.0794815919.

The spelling of 1313218297 in words is "one billion, three hundred thirteen million, two hundred eighteen thousand, two hundred ninety-seven".