1217320063567 has 2 divisors, whose sum is σ = 1217320063568. Its totient is φ = 1217320063566.

The previous prime is 1217320063549. The next prime is 1217320063573. The reversal of 1217320063567 is 7653600237121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1217320063567 - 2⁷ = 1217320063439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1217320063667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 608660031783 + 608660031784.

It is an arithmetic number, because the mean of its divisors is an integer number (608660031784).

Almost surely, 2^{1217320063567} is an apocalyptic number.

1217320063567 is a deficient number, since it is larger than the sum of its proper divisors (1).

1217320063567 is an equidigital number, since it uses as much as digits as its factorization.

1217320063567 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 317520, while the sum is 43.

The spelling of 1217320063567 in words is "one trillion, two hundred seventeen billion, three hundred twenty million, sixty-three thousand, five hundred sixty-seven".