12111113 has 16 divisors (see below), whose sum is σ = 14931840. Its totient is φ = 9590400.

The previous prime is 12111103. The next prime is 12111139. The reversal of 12111113 is 31111121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12111113 - 2⁴ = 12111097 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12111094 and 12111103.

It is not an unprimeable number, because it can be changed into a prime (12111103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4343 + ... + 6563.

It is an arithmetic number, because the mean of its divisors is an integer number (933240).

Almost surely, 2^12111113 is an apocalyptic number.

It is an amenable number.

12111113 is a deficient number, since it is larger than the sum of its proper divisors (2820727).

12111113 is a wasteful number, since it uses less digits than its factorization.

12111113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2288.

The product of its digits is 6, while the sum is 11.

The square root of 12111113 is about 3480.1024410210. The cubic root of 12111113 is about 229.6473044228.

Adding to 12111113 its reverse (31111121), we get a palindrome (43222234).

The spelling of 12111113 in words is "twelve million, one hundred eleven thousand, one hundred thirteen".