12116511 has 12 divisors (see below), whose sum is σ = 19092840. Its totient is φ = 7343280.

The previous prime is 12116483. The next prime is 12116521. The reversal of 12116511 is 11561121.

It is a happy number.

12116511 is a `hidden beast` number, since 1 + 2 + 11 + 651 + 1 = 666.

12116511 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12116511 - 2⁵ = 12116479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12116521) 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 in 11 ways as a sum of consecutive naturals, for example, 61096 + ... + 61293.

It is an arithmetic number, because the mean of its divisors is an integer number (1591070).

Almost surely, 2^12116511 is an apocalyptic number.

12116511 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12116511 is a deficient number, since it is larger than the sum of its proper divisors (6976329).

12116511 is a wasteful number, since it uses less digits than its factorization.

12116511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122406 (or 122403 counting only the distinct ones).

The product of its digits is 60, while the sum is 18.

The square root of 12116511 is about 3480.8779065058. The cubic root of 12116511 is about 229.6814177759.

Adding to 12116511 its reverse (11561121), we get a palindrome (23677632).

The spelling of 12116511 in words is "twelve million, one hundred sixteen thousand, five hundred eleven".