12112131 has 8 divisors (see below), whose sum is σ = 16292880. Its totient is φ = 8003072.

The previous prime is 12112127. The next prime is 12112159. The reversal of 12112131 is 13121121.

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

It is a cyclic number.

It is not a de Polignac number, because 12112131 - 2² = 12112127 is a prime.

It is a super-2 number, since 2×12112131² = 293407434722322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12112181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17526 + ... + 18203.

It is an arithmetic number, because the mean of its divisors is an integer number (2036610).

Almost surely, 2^12112131 is an apocalyptic number.

12112131 is a deficient number, since it is larger than the sum of its proper divisors (4180749).

12112131 is a wasteful number, since it uses less digits than its factorization.

12112131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35845.

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

The square root of 12112131 is about 3480.2486980100. The cubic root of 12112131 is about 229.6537385797.

Adding to 12112131 its reverse (13121121), we get a palindrome (25233252).

The spelling of 12112131 in words is "twelve million, one hundred twelve thousand, one hundred thirty-one".