11511116 has 6 divisors (see below), whose sum is σ = 20144460. Its totient is φ = 5755556.

The previous prime is 11511113. The next prime is 11511133. The reversal of 11511116 is 61111511.

It is a junction number, because it is equal to n+sod(n) for n = 11511094 and 11511103.

It is not an unprimeable number, because it can be changed into a prime (11511113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1438886 + ... + 1438893.

It is an arithmetic number, because the mean of its divisors is an integer number (3357410).

Almost surely, 2^11511116 is an apocalyptic number.

It is an amenable number.

11511116 is a deficient number, since it is larger than the sum of its proper divisors (8633344).

11511116 is a wasteful number, since it uses less digits than its factorization.

11511116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2877783 (or 2877781 counting only the distinct ones).

The product of its digits is 30, while the sum is 17.

The square root of 11511116 is about 3392.8035604792. The cubic root of 11511116 is about 225.7905753060.

Adding to 11511116 its reverse (61111511), we get a palindrome (72622627).

The spelling of 11511116 in words is "eleven million, five hundred eleven thousand, one hundred sixteen".