2011611115 has 16 divisors (see below), whose sum is σ = 2439859968. Its totient is φ = 1592037216.

The previous prime is 2011611109. The next prime is 2011611163. The reversal of 2011611115 is 5111161102.

It is not a de Polignac number, because 2011611115 - 2⁵ = 2011611083 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2011611092 and 2011611101.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 886212 + ... + 888478.

It is an arithmetic number, because the mean of its divisors is an integer number (152491248).

Almost surely, 2^2011611115 is an apocalyptic number.

2011611115 is a deficient number, since it is larger than the sum of its proper divisors (428248853).

2011611115 is a wasteful number, since it uses less digits than its factorization.

2011611115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4098.

The product of its (nonzero) digits is 60, while the sum is 19.

The square root of 2011611115 is about 44850.9878932449. The cubic root of 2011611115 is about 1262.3545280871.

Adding to 2011611115 its reverse (5111161102), we get a palindrome (7122772217).

The spelling of 2011611115 in words is "two billion, eleven million, six hundred eleven thousand, one hundred fifteen".