12011304 has 16 divisors (see below), whose sum is σ = 30028320. Its totient is φ = 4003760.

The previous prime is 12011303. The next prime is 12011309. The reversal of 12011304 is 40311021.

It is a happy number.

12011304 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 12011304.

It is not an unprimeable number, because it can be changed into a prime (12011303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250212 + ... + 250259.

It is an arithmetic number, because the mean of its divisors is an integer number (1876770).

Almost surely, 2^12011304 is an apocalyptic number.

It is an amenable number.

12011304 is an abundant number, since it is smaller than the sum of its proper divisors (18017016).

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

12011304 is a wasteful number, since it uses less digits than its factorization.

12011304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500480 (or 500476 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 12011304 is about 3465.7328229395. The cubic root of 12011304 is about 229.0147140041.

Adding to 12011304 its reverse (40311021), we get a palindrome (52322325).

The spelling of 12011304 in words is "twelve million, eleven thousand, three hundred four".