1320323297 has 2 divisors, whose sum is σ = 1320323298. Its totient is φ = 1320323296.

The previous prime is 1320323273. The next prime is 1320323311. The reversal of 1320323297 is 7923230231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 998623201 + 321700096 = 31601^2 + 17936^2 .

It is a cyclic number.

It is not a de Polignac number, because 1320323297 - 2¹⁸ = 1320061153 is a prime.

It is not a weakly prime, because it can be changed into another prime (1320323267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660161648 + 660161649.

It is an arithmetic number, because the mean of its divisors is an integer number (660161649).

Almost surely, 2^1320323297 is an apocalyptic number.

It is an amenable number.

1320323297 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320323297 is an equidigital number, since it uses as much as digits as its factorization.

1320323297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 1320323297 is about 36336.2532053045. The cubic root of 1320323297 is about 1097.0508598177.

The spelling of 1320323297 in words is "one billion, three hundred twenty million, three hundred twenty-three thousand, two hundred ninety-seven".