12112310111 has 16 divisors (see below), whose sum is σ = 13669306368. Its totient is φ = 10632837600.

The previous prime is 12112310087. The next prime is 12112310129. The reversal of 12112310111 is 11101321121.

It is not a de Polignac number, because 12112310111 - 2¹⁰ = 12112309087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112310191) 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, 119525 + ... + 196241.

It is an arithmetic number, because the mean of its divisors is an integer number (854331648).

Almost surely, 2^12112310111 is an apocalyptic number.

12112310111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12112310111 is a deficient number, since it is larger than the sum of its proper divisors (1556996257).

12112310111 is a wasteful number, since it uses less digits than its factorization.

12112310111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77222.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 12112310111 its reverse (11101321121), we get a palindrome (23213631232).

It can be divided in two parts, 12112 and 310111, that added together give a palindrome (322223).

The spelling of 12112310111 in words is "twelve billion, one hundred twelve million, three hundred ten thousand, one hundred eleven".