12116131 has 4 divisors (see below), whose sum is σ = 12443632. Its totient is φ = 11788632.

The previous prime is 12116123. The next prime is 12116141. The reversal of 12116131 is 13161121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12116131 - 2³ = 12116123 is a prime.

It is a super-2 number, since 2×12116131² = 293601260818322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12116141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163695 + ... + 163768.

It is an arithmetic number, because the mean of its divisors is an integer number (3110908).

Almost surely, 2^12116131 is an apocalyptic number.

12116131 is a deficient number, since it is larger than the sum of its proper divisors (327501).

12116131 is an equidigital number, since it uses as much as digits as its factorization.

12116131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327500.

The product of its digits is 36, while the sum is 16.

The square root of 12116131 is about 3480.8233221466. The cubic root of 12116131 is about 229.6790166487.

Adding to 12116131 its reverse (13161121), we get a palindrome (25277252).

The spelling of 12116131 in words is "twelve million, one hundred sixteen thousand, one hundred thirty-one".