12113330121 has 24 divisors (see below), whose sum is σ = 18425309760. Its totient is φ = 7653561696.

The previous prime is 12113330113. The next prime is 12113330153. The reversal of 12113330121 is 12103331121.

12113330121 is a `hidden beast` number, since 1 + 211 + 3 + 330 + 121 = 666.

12113330121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12113330121 - 2³ = 12113330113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12113330094 and 12113330103.

It is not an unprimeable number, because it can be changed into a prime (12113330521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 245871 + ... + 290996.

It is an arithmetic number, because the mean of its divisors is an integer number (767721240).

Almost surely, 2^12113330121 is an apocalyptic number.

It is an amenable number.

12113330121 is a deficient number, since it is larger than the sum of its proper divisors (6311979639).

12113330121 is a wasteful number, since it uses less digits than its factorization.

12113330121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537005 (or 537002 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 12113330121 its reverse (12103331121), we get a palindrome (24216661242).

The spelling of 12113330121 in words is "twelve billion, one hundred thirteen million, three hundred thirty thousand, one hundred twenty-one".