2111001109 has 8 divisors (see below), whose sum is σ = 2414213568. Its totient is φ = 1808198880.

The previous prime is 2111001103. The next prime is 2111001133. The reversal of 2111001109 is 9011001112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2111001109 - 2²¹ = 2108903957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2111001092 and 2111001101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111001103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91447 + ... + 112180.

It is an arithmetic number, because the mean of its divisors is an integer number (301776696).

Almost surely, 2^2111001109 is an apocalyptic number.

It is an amenable number.

2111001109 is a deficient number, since it is larger than the sum of its proper divisors (303212459).

2111001109 is a wasteful number, since it uses less digits than its factorization.

2111001109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205115.

The product of its (nonzero) digits is 18, while the sum is 16.

The square root of 2111001109 is about 45945.6320992540. The cubic root of 2111001109 is about 1282.8114288150.

The spelling of 2111001109 in words is "two billion, one hundred eleven million, one thousand, one hundred nine".