1112005805917 has 2 divisors, whose sum is σ = 1112005805918. Its totient is φ = 1112005805916.

The previous prime is 1112005805909. The next prime is 1112005805929. The reversal of 1112005805917 is 7195085002111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1110623007321 + 1382798596 = 1053861^2 + 37186^2 .

It is a cyclic number.

It is not a de Polignac number, because 1112005805917 - 2³ = 1112005805909 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1112005805917.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1112005802917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556002902958 + 556002902959.

It is an arithmetic number, because the mean of its divisors is an integer number (556002902959).

Almost surely, 2^{1112005805917} is an apocalyptic number.

It is an amenable number.

1112005805917 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112005805917 is an equidigital number, since it uses as much as digits as its factorization.

1112005805917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 40.

The spelling of 1112005805917 in words is "one trillion, one hundred twelve billion, five million, eight hundred five thousand, nine hundred seventeen".