1009100909911 has 4 divisors (see below), whose sum is σ = 1016803970424. Its totient is φ = 1001397849400.

The previous prime is 1009100909899. The next prime is 1009100909941. The reversal of 1009100909911 is 1199090019001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1009100909911 - 2⁷ = 1009100909783 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1009100909941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3851530060 + ... + 3851530321.

It is an arithmetic number, because the mean of its divisors is an integer number (254200992606).

Almost surely, 2^{1009100909911} is an apocalyptic number.

1009100909911 is a deficient number, since it is larger than the sum of its proper divisors (7703060513).

1009100909911 is an equidigital number, since it uses as much as digits as its factorization.

1009100909911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7703060512.

The product of its (nonzero) digits is 6561, while the sum is 40.

The spelling of 1009100909911 in words is "one trillion, nine billion, one hundred million, nine hundred nine thousand, nine hundred eleven".