200020100011909 has 2 divisors, whose sum is σ = 200020100011910. Its totient is φ = 200020100011908.

The previous prime is 200020100011883. The next prime is 200020100011931. The reversal of 200020100011909 is 909110001020002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127623451673025 + 72396648338884 = 11297055^2 + 8508622^2 .

It is a cyclic number.

It is not a de Polignac number, because 200020100011909 - 2⁹ = 200020100011397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200020100011939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100010050005954 + 100010050005955.

It is an arithmetic number, because the mean of its divisors is an integer number (100010050005955).

Almost surely, 2^{200020100011909} is an apocalyptic number.

It is an amenable number.

200020100011909 is a deficient number, since it is larger than the sum of its proper divisors (1).

200020100011909 is an equidigital number, since it uses as much as digits as its factorization.

200020100011909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 25.

The spelling of 200020100011909 in words is "two hundred trillion, twenty billion, one hundred million, eleven thousand, nine hundred nine".