11318321 has 8 divisors (see below), whose sum is σ = 12958464. Its totient is φ = 9684000.

The previous prime is 11318299. The next prime is 11318327. The reversal of 11318321 is 12381311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11318321 - 2¹⁰ = 11317297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11318293 and 11318302.

It is not an unprimeable number, because it can be changed into a prime (11318327) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4181 + ... + 6333.

It is an arithmetic number, because the mean of its divisors is an integer number (1619808).

Almost surely, 2^11318321 is an apocalyptic number.

It is an amenable number.

11318321 is a deficient number, since it is larger than the sum of its proper divisors (1640143).

11318321 is an equidigital number, since it uses as much as digits as its factorization.

11318321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2911.

The product of its digits is 144, while the sum is 20.

The square root of 11318321 is about 3364.2712435236. The cubic root of 11318321 is about 224.5229133876.

Adding to 11318321 its reverse (12381311), we get a palindrome (23699632).

The spelling of 11318321 in words is "eleven million, three hundred eighteen thousand, three hundred twenty-one".