2009101911 has 16 divisors (see below), whose sum is σ = 2803315200. Its totient is φ = 1277480160.

The previous prime is 2009101891. The next prime is 2009101921. The reversal of 2009101911 is 1191019002.

It is not a de Polignac number, because 2009101911 - 2⁹ = 2009101399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2009101921) 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, 17635 + ... + 65796.

It is an arithmetic number, because the mean of its divisors is an integer number (175207200).

Almost surely, 2^2009101911 is an apocalyptic number.

2009101911 is a deficient number, since it is larger than the sum of its proper divisors (794213289).

2009101911 is a wasteful number, since it uses less digits than its factorization.

2009101911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83806.

The product of its (nonzero) digits is 162, while the sum is 24.

The square root of 2009101911 is about 44823.0064922022. The cubic root of 2009101911 is about 1261.8294393614.

The spelling of 2009101911 in words is "two billion, nine million, one hundred one thousand, nine hundred eleven".