12112331 has 8 divisors (see below), whose sum is σ = 15101184. Its totient is φ = 9438120.

The previous prime is 12112319. The next prime is 12112333. The reversal of 12112331 is 13321121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12112331 is a prime.

It is a super-2 number, since 2×12112331² = 293417124507122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12112333) 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 7 ways as a sum of consecutive naturals, for example, 78575 + ... + 78728.

It is an arithmetic number, because the mean of its divisors is an integer number (1887648).

Almost surely, 2^12112331 is an apocalyptic number.

12112331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12112331 is a deficient number, since it is larger than the sum of its proper divisors (2988853).

12112331 is a wasteful number, since it uses less digits than its factorization.

12112331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157321.

The product of its digits is 36, while the sum is 14.

The square root of 12112331 is about 3480.2774314701. The cubic root of 12112331 is about 229.6550026154.

Adding to 12112331 its reverse (13321121), we get a palindrome (25433452).

The spelling of 12112331 in words is "twelve million, one hundred twelve thousand, three hundred thirty-one".