100019190909 has 16 divisors (see below), whose sum is σ = 145595211264. Its totient is φ = 60570711600.

The previous prime is 100019190871. The next prime is 100019190941. The reversal of 100019190909 is 909091910001.

It is not a de Polignac number, because 100019190909 - 2¹⁹ = 100018666621 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100019190109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1131249 + ... + 1216454.

It is an arithmetic number, because the mean of its divisors is an integer number (9099700704).

Almost surely, 2^100019190909 is an apocalyptic number.

It is an amenable number.

100019190909 is a deficient number, since it is larger than the sum of its proper divisors (45576020355).

100019190909 is a wasteful number, since it uses less digits than its factorization.

100019190909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2349008.

The product of its (nonzero) digits is 6561, while the sum is 39.

The spelling of 100019190909 in words is "one hundred billion, nineteen million, one hundred ninety thousand, nine hundred nine".