100002000209 has 2 divisors, whose sum is σ = 100002000210. Its totient is φ = 100002000208.

The previous prime is 100002000199. The next prime is 100002000227. The reversal of 100002000209 is 902000200001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87181420225 + 12820579984 = 295265^2 + 113228^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100002000209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100002000193 and 100002000202.

It is not a weakly prime, because it can be changed into another prime (100002000239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50001000104 + 50001000105.

It is an arithmetic number, because the mean of its divisors is an integer number (50001000105).

Almost surely, 2^100002000209 is an apocalyptic number.

It is an amenable number.

100002000209 is a deficient number, since it is larger than the sum of its proper divisors (1).

100002000209 is an equidigital number, since it uses as much as digits as its factorization.

100002000209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 14.

The spelling of 100002000209 in words is "one hundred billion, two million, two hundred nine", and thus it is an aban number.