12112103122311 has 32 divisors (see below), whose sum is σ = 16435598699520. Its totient is φ = 7931881211264.

The previous prime is 12112103122289. The next prime is 12112103122363. The reversal of 12112103122311 is 11322130121121.

It is a cyclic number.

It is not a de Polignac number, because 12112103122311 - 2⁷ = 12112103122183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112103122711) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2211445705 + ... + 2211451181.

It is an arithmetic number, because the mean of its divisors is an integer number (513612459360).

Almost surely, 2^{12112103122311} is an apocalyptic number.

12112103122311 is a deficient number, since it is larger than the sum of its proper divisors (4323495577209).

12112103122311 is a wasteful number, since it uses less digits than its factorization.

12112103122311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12695.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 12112103122311 its reverse (11322130121121), we get a palindrome (23434233243432).

The spelling of 12112103122311 in words is "twelve trillion, one hundred twelve billion, one hundred three million, one hundred twenty-two thousand, three hundred eleven".