100009390909 has 2 divisors, whose sum is σ = 100009390910. Its totient is φ = 100009390908.

The previous prime is 100009390861. The next prime is 100009390931. The reversal of 100009390909 is 909093900001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99950822500 + 58568409 = 316150^2 + 7653^2 .

It is a cyclic number.

It is not a de Polignac number, because 100009390909 - 2⁷ = 100009390781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100009390939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50004695454 + 50004695455.

It is an arithmetic number, because the mean of its divisors is an integer number (50004695455).

Almost surely, 2^100009390909 is an apocalyptic number.

It is an amenable number.

100009390909 is a deficient number, since it is larger than the sum of its proper divisors (1).

100009390909 is an equidigital number, since it uses as much as digits as its factorization.

100009390909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19683, while the sum is 40.

The spelling of 100009390909 in words is "one hundred billion, nine million, three hundred ninety thousand, nine hundred nine".