12111107 has 8 divisors (see below), whose sum is σ = 12383280. Its totient is φ = 11841280.

The previous prime is 12111103. The next prime is 12111139. The reversal of 12111107 is 70111121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12111107 - 2² = 12111103 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12111091 and 12111100.

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 7 ways as a sum of consecutive naturals, for example, 13307 + ... + 14187.

It is an arithmetic number, because the mean of its divisors is an integer number (1547910).

Almost surely, 2^12111107 is an apocalyptic number.

12111107 is a deficient number, since it is larger than the sum of its proper divisors (272173).

12111107 is an equidigital number, since it uses as much as digits as its factorization.

12111107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173.

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

The square root of 12111107 is about 3480.1015789773. The cubic root of 12111107 is about 229.6472664994.

Adding to 12111107 its sum of digits (14), we get a palindrome (12111121).

Adding to 12111107 its reverse (70111121), we get a palindrome (82222228).

The spelling of 12111107 in words is "twelve million, one hundred eleven thousand, one hundred seven".