1320717407 has 2 divisors, whose sum is σ = 1320717408. Its totient is φ = 1320717406.

The previous prime is 1320717389. The next prime is 1320717413. The reversal of 1320717407 is 7047170231.

It is a strong prime.

It is an emirp because it is prime and its reverse (7047170231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1320717407 - 2¹⁴ = 1320701023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1320717457) 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, 660358703 + 660358704.

It is an arithmetic number, because the mean of its divisors is an integer number (660358704).

Almost surely, 2^1320717407 is an apocalyptic number.

1320717407 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320717407 is an equidigital number, since it uses as much as digits as its factorization.

1320717407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8232, while the sum is 32.

The square root of 1320717407 is about 36341.6758969644. The cubic root of 1320717407 is about 1097.1600037179.

Adding to 1320717407 its reverse (7047170231), we get a palindrome (8367887638).

The spelling of 1320717407 in words is "one billion, three hundred twenty million, seven hundred seventeen thousand, four hundred seven".