12112112113 has 4 divisors (see below), whose sum is σ = 12192324928. Its totient is φ = 12031899300.

The previous prime is 12112112099. The next prime is 12112112119. The reversal of 12112112113 is 31121121121.

It is a happy number.

12112112113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31121121121 = 103 ⋅302146807.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12112112113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12112112119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40106181 + ... + 40106482.

It is an arithmetic number, because the mean of its divisors is an integer number (3048081232).

Almost surely, 2^12112112113 is an apocalyptic number.

It is an amenable number.

12112112113 is a deficient number, since it is larger than the sum of its proper divisors (80212815).

12112112113 is an equidigital number, since it uses as much as digits as its factorization.

12112112113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80212814.

The product of its digits is 24, while the sum is 16.

Adding to 12112112113 its reverse (31121121121), we get a palindrome (43233233234).

The spelling of 12112112113 in words is "twelve billion, one hundred twelve million, one hundred twelve thousand, one hundred thirteen".