11273321 has 4 divisors (see below), whose sum is σ = 11309652. Its totient is φ = 11236992.

The previous prime is 11273299. The next prime is 11273333. The reversal of 11273321 is 12337211.

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 2062096 + 9211225 = 1436^2 + 3035^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11273321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11273293 and 11273302.

It is not an unprimeable number, because it can be changed into a prime (11273341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17696 + ... + 18321.

It is an arithmetic number, because the mean of its divisors is an integer number (2827413).

Almost surely, 2^11273321 is an apocalyptic number.

It is an amenable number.

11273321 is a deficient number, since it is larger than the sum of its proper divisors (36331).

11273321 is an equidigital number, since it uses as much as digits as its factorization.

11273321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36330.

The product of its digits is 252, while the sum is 20.

The square root of 11273321 is about 3357.5766558636. The cubic root of 11273321 is about 224.2249613381.

The spelling of 11273321 in words is "eleven million, two hundred seventy-three thousand, three hundred twenty-one".