12112143 has 16 divisors (see below), whose sum is σ = 17426016. Its totient is φ = 7454720.

The previous prime is 12112127. The next prime is 12112159. The reversal of 12112143 is 34121121.

12112143 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12112127) and next prime (12112159).

It is a cyclic number.

It is not a de Polignac number, because 12112143 - 2⁴ = 12112127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 463 + ... + 4943.

It is an arithmetic number, because the mean of its divisors is an integer number (1089126).

Almost surely, 2^12112143 is an apocalyptic number.

12112143 is a deficient number, since it is larger than the sum of its proper divisors (5313873).

12112143 is a wasteful number, since it uses less digits than its factorization.

12112143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4554.

The product of its digits is 48, while the sum is 15.

The square root of 12112143 is about 3480.2504220243. The cubic root of 12112143 is about 229.6538144223.

Adding to 12112143 its reverse (34121121), we get a palindrome (46233264).

The spelling of 12112143 in words is "twelve million, one hundred twelve thousand, one hundred forty-three".