12111240113 has 16 divisors (see below), whose sum is σ = 14659956864. Its totient is φ = 9767520000.

The previous prime is 12111240109. The next prime is 12111240139. The reversal of 12111240113 is 31104211121.

It is not a de Polignac number, because 12111240113 - 2² = 12111240109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 12111240091 and 12111240100.

It is not an unprimeable number, because it can be changed into a prime (12111249113) 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 15 ways as a sum of consecutive naturals, for example, 448238 + ... + 474488.

It is an arithmetic number, because the mean of its divisors is an integer number (916247304).

Almost surely, 2^12111240113 is an apocalyptic number.

It is an amenable number.

12111240113 is a deficient number, since it is larger than the sum of its proper divisors (2548716751).

12111240113 is a wasteful number, since it uses less digits than its factorization.

12111240113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30152.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 12111240113 its reverse (31104211121), we get a palindrome (43215451234).

The spelling of 12111240113 in words is "twelve billion, one hundred eleven million, two hundred forty thousand, one hundred thirteen".