999001100111017 has 2 divisors, whose sum is σ = 999001100111018. Its totient is φ = 999001100111016.

The previous prime is 999001100110957. The next prime is 999001100111023. The reversal of 999001100111017 is 710111001100999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 980096378733081 + 18904721377936 = 31306491^2 + 4347956^2 .

It is a cyclic number.

It is not a de Polignac number, because 999001100111017 - 2⁷ = 999001100110889 is a prime.

It is not a weakly prime, because it can be changed into another prime (999001101111017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499500550055508 + 499500550055509.

It is an arithmetic number, because the mean of its divisors is an integer number (499500550055509).

Almost surely, 2^{999001100111017} is an apocalyptic number.

It is an amenable number.

999001100111017 is a deficient number, since it is larger than the sum of its proper divisors (1).

999001100111017 is an equidigital number, since it uses as much as digits as its factorization.

999001100111017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5103, while the sum is 40.

The spelling of 999001100111017 in words is "nine hundred ninety-nine trillion, one billion, one hundred million, one hundred eleven thousand, seventeen".