12112112110203 has 24 divisors (see below), whose sum is σ = 19995454054368. Its totient is φ = 6920910513792.

The previous prime is 12112112110183. The next prime is 12112112110237. The reversal of 12112112110203 is 30201121121121.

It is a happy number.

It is not a de Polignac number, because 12112112110203 - 2⁵ = 12112112110171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12112112115203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2629776 + ... + 5580317.

It is an arithmetic number, because the mean of its divisors is an integer number (833143918932).

Almost surely, 2^{12112112110203} is an apocalyptic number.

12112112110203 is a deficient number, since it is larger than the sum of its proper divisors (7883341944165).

12112112110203 is a wasteful number, since it uses less digits than its factorization.

12112112110203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8233523 (or 8233520 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 12112112110203 its reverse (30201121121121), we get a palindrome (42313233231324).

The spelling of 12112112110203 in words is "twelve trillion, one hundred twelve billion, one hundred twelve million, one hundred ten thousand, two hundred three".