12011104 has 72 divisors (see below), whose sum is σ = 28622160. Its totient is φ = 4854528.

The previous prime is 12011099. The next prime is 12011113. The reversal of 12011104 is 40111021.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 279307 + ... + 279349.

It is an arithmetic number, because the mean of its divisors is an integer number (397530).

Almost surely, 2^12011104 is an apocalyptic number.

12011104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12011104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14311080).

12011104 is an abundant number, since it is smaller than the sum of its proper divisors (16611056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12011104 is an equidigital number, since it uses as much as digits as its factorization.

12011104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 12011104 is about 3465.7039688929. The cubic root of 12011104 is about 229.0134428904.

Adding to 12011104 its reverse (40111021), we get a palindrome (52122125).

The spelling of 12011104 in words is "twelve million, eleven thousand, one hundred four".