1000000000109 has 16 divisors (see below), whose sum is σ = 1114452366336. Its totient is φ = 889483057200.

The previous prime is 1000000000091. The next prime is 1000000000121. The reversal of 1000000000109 is 9010000000001.

It is a cyclic number.

It is not a de Polignac number, because 1000000000109 - 2³⁶ = 931280523373 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (11).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1000000000109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000000000169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1455914 + ... + 2029700.

It is an arithmetic number, because the mean of its divisors is an integer number (69653272896).

Almost surely, 2^{1000000000109} is an apocalyptic number.

It is an amenable number.

1000000000109 is a deficient number, since it is larger than the sum of its proper divisors (114452366227).

1000000000109 is a wasteful number, since it uses less digits than its factorization.

1000000000109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577216.

The product of its (nonzero) digits is 9, while the sum is 11.

The spelling of 1000000000109 in words is "one trillion, one hundred nine", and thus it is an aban number.