2011109188 has 24 divisors (see below), whose sum is σ = 4041465120. Its totient is φ = 866027520.

The previous prime is 2011109161. The next prime is 2011109201. The reversal of 2011109188 is 8819011102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1201981 + ... + 1203652.

It is an arithmetic number, because the mean of its divisors is an integer number (168394380).

Almost surely, 2^2011109188 is an apocalyptic number.

It is an amenable number.

2011109188 is an abundant number, since it is smaller than the sum of its proper divisors (2030355932).

2011109188 is a wasteful number, since it uses less digits than its factorization.

2011109188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2405667 (or 2405665 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 31.

The square root of 2011109188 is about 44845.3920486821. The cubic root of 2011109188 is about 1262.2495272544.

The spelling of 2011109188 in words is "two billion, eleven million, one hundred nine thousand, one hundred eighty-eight".