12112123 has 4 divisors (see below), whose sum is σ = 12125008. Its totient is φ = 12099240.

The previous prime is 12112069. The next prime is 12112127. The reversal of 12112123 is 32121121.

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 12112123 - 2²¹ = 10014971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12112127) 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, 4911 + ... + 6952.

It is an arithmetic number, because the mean of its divisors is an integer number (3031252).

Almost surely, 2^12112123 is an apocalyptic number.

12112123 is a deficient number, since it is larger than the sum of its proper divisors (12885).

12112123 is a wasteful number, since it uses less digits than its factorization.

12112123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12884.

The product of its digits is 24, while the sum is 13.

The square root of 12112123 is about 3480.2475486666. The cubic root of 12112123 is about 229.6536880180.

Adding to 12112123 its reverse (32121121), we get a palindrome (44233244).

The spelling of 12112123 in words is "twelve million, one hundred twelve thousand, one hundred twenty-three".