12112003111 has 16 divisors (see below), whose sum is σ = 13105235808. Its totient is φ = 11127657600.

The previous prime is 12112003097. The next prime is 12112003117. The reversal of 12112003111 is 11130021121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12112003111 - 2⁷ = 12112002983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12112003091 and 12112003100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112003117) 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, 5656101 + ... + 5658241.

It is an arithmetic number, because the mean of its divisors is an integer number (819077238).

Almost surely, 2^12112003111 is an apocalyptic number.

12112003111 is a deficient number, since it is larger than the sum of its proper divisors (993232697).

12112003111 is a wasteful number, since it uses less digits than its factorization.

12112003111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4002.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 12112003111 its reverse (11130021121), we get a palindrome (23242024232).

The spelling of 12112003111 in words is "twelve billion, one hundred twelve million, three thousand, one hundred eleven".