12112311 has 4 divisors (see below), whose sum is σ = 16149752. Its totient is φ = 8074872.

The previous prime is 12112297. The next prime is 12112319. The reversal of 12112311 is 11321121.

12112311 is digitally balanced in base 3, 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.

It is not a de Polignac number, because 12112311 - 2⁷ = 12112183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2018716 + ... + 2018721.

It is an arithmetic number, because the mean of its divisors is an integer number (4037438).

Almost surely, 2^12112311 is an apocalyptic number.

12112311 is a deficient number, since it is larger than the sum of its proper divisors (4037441).

12112311 is an equidigital number, since it uses as much as digits as its factorization.

12112311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4037440.

The product of its digits is 12, while the sum is 12.

The square root of 12112311 is about 3480.2745581347. The cubic root of 12112311 is about 229.6548762124.

Adding to 12112311 its reverse (11321121), we get a palindrome (23433432).

The spelling of 12112311 in words is "twelve million, one hundred twelve thousand, three hundred eleven".