11143321 has 8 divisors (see below), whose sum is σ = 13031744. Its totient is φ = 9329040.

The previous prime is 11143309. The next prime is 11143333. The reversal of 11143321 is 12334111.

It is an interprime number because it is at equal distance from previous prime (11143309) and next prime (11143333).

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

It is not a de Polignac number, because 11143321 - 2⁷ = 11143193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11143295 and 11143304.

It is not an unprimeable number, because it can be changed into a prime (11143351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18210 + ... + 18811.

It is an arithmetic number, because the mean of its divisors is an integer number (1628968).

Almost surely, 2^11143321 is an apocalyptic number.

It is an amenable number.

11143321 is a deficient number, since it is larger than the sum of its proper divisors (1888423).

11143321 is an equidigital number, since it uses as much as digits as its factorization.

11143321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37071.

The product of its digits is 72, while the sum is 16.

The square root of 11143321 is about 3338.1613202480. The cubic root of 11143321 is about 223.3597322820.

Adding to 11143321 its reverse (12334111), we get a palindrome (23477432).

The spelling of 11143321 in words is "eleven million, one hundred forty-three thousand, three hundred twenty-one".