1320730804297 has 2 divisors, whose sum is σ = 1320730804298. Its totient is φ = 1320730804296.

The previous prime is 1320730804247. The next prime is 1320730804301. The reversal of 1320730804297 is 7924080370231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1261625414841 + 59105389456 = 1123221^2 + 243116^2 .

It is a cyclic number.

It is not a de Polignac number, because 1320730804297 - 2²³ = 1320722415689 is a prime.

It is not a weakly prime, because it can be changed into another prime (1320730804207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660365402148 + 660365402149.

It is an arithmetic number, because the mean of its divisors is an integer number (660365402149).

Almost surely, 2^{1320730804297} is an apocalyptic number.

It is an amenable number.

1320730804297 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320730804297 is an equidigital number, since it uses as much as digits as its factorization.

1320730804297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 508032, while the sum is 46.

The spelling of 1320730804297 in words is "one trillion, three hundred twenty billion, seven hundred thirty million, eight hundred four thousand, two hundred ninety-seven".