11211304 has 64 divisors (see below), whose sum is σ = 24393600. Its totient is φ = 4790016.

The previous prime is 11211293. The next prime is 11211331. The reversal of 11211304 is 40311211.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102802 + ... + 102910.

It is an arithmetic number, because the mean of its divisors is an integer number (381150).

Almost surely, 2^11211304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11211304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12196800).

11211304 is an abundant number, since it is smaller than the sum of its proper divisors (13182296).

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

11211304 is a wasteful number, since it uses less digits than its factorization.

11211304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194 (or 190 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 11211304 is about 3348.3285382411. The cubic root of 11211304 is about 223.8130348914.

Adding to 11211304 its reverse (40311211), we get a palindrome (51522515).

The spelling of 11211304 in words is "eleven million, two hundred eleven thousand, three hundred four".