1200118015717 has 2 divisors, whose sum is σ = 1200118015718. Its totient is φ = 1200118015716.

The previous prime is 1200118015699. The next prime is 1200118015727. The reversal of 1200118015717 is 7175108110021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1159054640836 + 41063374881 = 1076594^2 + 202641^2 .

It is an emirp because it is prime and its reverse (7175108110021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1200118015717 - 2³¹ = 1197970532069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1200118015727) 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, 600059007858 + 600059007859.

It is an arithmetic number, because the mean of its divisors is an integer number (600059007859).

Almost surely, 2^{1200118015717} is an apocalyptic number.

It is an amenable number.

1200118015717 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200118015717 is an equidigital number, since it uses as much as digits as its factorization.

1200118015717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3920, while the sum is 34.

The spelling of 1200118015717 in words is "one trillion, two hundred billion, one hundred eighteen million, fifteen thousand, seven hundred seventeen".