2011111110 has 48 divisors (see below), whose sum is σ = 5264017200. Its totient is φ = 532693440.

The previous prime is 2011111103. The next prime is 2011111159. The reversal of 2011111110 is 111111102.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 2011111092 and 2011111101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61576 + ... + 88395.

It is an arithmetic number, because the mean of its divisors is an integer number (109667025).

Almost surely, 2^2011111110 is an apocalyptic number.

2011111110 is an abundant number, since it is smaller than the sum of its proper divisors (3252906090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2011111110 is a wasteful number, since it uses less digits than its factorization.

2011111110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150133 (or 150130 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

The square root of 2011111110 is about 44845.4134778575. The cubic root of 2011111110 is about 1262.2499293613.

Adding to 2011111110 its reverse (111111102), we get a palindrome (2122222212).

The spelling of 2011111110 in words is "two billion, eleven million, one hundred eleven thousand, one hundred ten".