100111717109 has 2 divisors, whose sum is σ = 100111717110. Its totient is φ = 100111717108.

The previous prime is 100111717103. The next prime is 100111717183. The reversal of 100111717109 is 901717111001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55685616484 + 44426100625 = 235978^2 + 210775^2 .

It is a cyclic number.

It is not a de Polignac number, because 100111717109 - 2¹⁶ = 100111651573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100111717103) 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, 50055858554 + 50055858555.

It is an arithmetic number, because the mean of its divisors is an integer number (50055858555).

Almost surely, 2^100111717109 is an apocalyptic number.

It is an amenable number.

100111717109 is a deficient number, since it is larger than the sum of its proper divisors (1).

100111717109 is an equidigital number, since it uses as much as digits as its factorization.

100111717109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 441, while the sum is 29.

The spelling of 100111717109 in words is "one hundred billion, one hundred eleven million, seven hundred seventeen thousand, one hundred nine".