1113304321 has 4 divisors (see below), whose sum is σ = 1116109012. Its totient is φ = 1110499632.

The previous prime is 1113304289. The next prime is 1113304391. The reversal of 1113304321 is 1234033111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 375584400 + 737719921 = 19380^2 + 27161^2 .

It is a cyclic number.

It is not a de Polignac number, because 1113304321 - 2⁵ = 1113304289 is a prime.

It is a super-2 number, since 2×1113304321² = 2478893022314542082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1113304391) 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 3 ways as a sum of consecutive naturals, for example, 1401750 + ... + 1402543.

It is an arithmetic number, because the mean of its divisors is an integer number (279027253).

Almost surely, 2^1113304321 is an apocalyptic number.

It is an amenable number.

1113304321 is a deficient number, since it is larger than the sum of its proper divisors (2804691).

1113304321 is an equidigital number, since it uses as much as digits as its factorization.

1113304321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2804690.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1113304321 is about 33366.2152633468. The cubic root of 1113304321 is about 1036.4252020588.

Adding to 1113304321 its reverse (1234033111), we get a palindrome (2347337432).

The spelling of 1113304321 in words is "one billion, one hundred thirteen million, three hundred four thousand, three hundred twenty-one".