100010000009999 has 2 divisors, whose sum is σ = 100010000010000. Its totient is φ = 100010000009998.

The previous prime is 100010000009989. The next prime is 100010000010049. The reversal of 100010000009999 is 999900000010001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100010000009999 - 2²⁰ = 100009998961423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100010000009989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50005000004999 + 50005000005000.

It is an arithmetic number, because the mean of its divisors is an integer number (50005000005000).

Almost surely, 2^{100010000009999} is an apocalyptic number.

100010000009999 is a deficient number, since it is larger than the sum of its proper divisors (1).

100010000009999 is an equidigital number, since it uses as much as digits as its factorization.

100010000009999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6561, while the sum is 38.

The spelling of 100010000009999 in words is "one hundred trillion, ten billion, nine thousand, nine hundred ninety-nine".