100002001109 has 2 divisors, whose sum is σ = 100002001110. Its totient is φ = 100002001108.

The previous prime is 100002001081. The next prime is 100002001111. The reversal of 100002001109 is 901100200001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99238860484 + 763140625 = 315022^2 + 27625^2 .

It is a cyclic number.

It is not a de Polignac number, because 100002001109 - 2²⁸ = 99733565653 is a prime.

Together with 100002001111, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 100002001093 and 100002001102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100002001409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50001000554 + 50001000555.

It is an arithmetic number, because the mean of its divisors is an integer number (50001000555).

Almost surely, 2^100002001109 is an apocalyptic number.

It is an amenable number.

100002001109 is a deficient number, since it is larger than the sum of its proper divisors (1).

100002001109 is an equidigital number, since it uses as much as digits as its factorization.

100002001109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 14.

The spelling of 100002001109 in words is "one hundred billion, two million, one thousand, one hundred nine".