1113221304 has 48 divisors (see below), whose sum is σ = 3246898200. Its totient is φ = 342529344.

The previous prime is 1113221243. The next prime is 1113221309. The reversal of 1113221304 is 4031223111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113221309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 593734 + ... + 595605.

Almost surely, 2^1113221304 is an apocalyptic number.

It is an amenable number.

1113221304 is an abundant number, since it is smaller than the sum of its proper divisors (2133676896).

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

1113221304 is a wasteful number, since it uses less digits than its factorization.

1113221304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189364 (or 1189357 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1113221304 is about 33364.9712123358. The cubic root of 1113221304 is about 1036.3994399953.

Adding to 1113221304 its reverse (4031223111), we get a palindrome (5144444415).

The spelling of 1113221304 in words is "one billion, one hundred thirteen million, two hundred twenty-one thousand, three hundred four".