11238321 has 4 divisors (see below), whose sum is σ = 14984432. Its totient is φ = 7492212.

The previous prime is 11238313. The next prime is 11238347. The reversal of 11238321 is 12383211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12383211 = 3 ⋅4127737.

It is not a de Polignac number, because 11238321 - 2³ = 11238313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11238301) 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, 1873051 + ... + 1873056.

It is an arithmetic number, because the mean of its divisors is an integer number (3746108).

Almost surely, 2^11238321 is an apocalyptic number.

It is an amenable number.

11238321 is a deficient number, since it is larger than the sum of its proper divisors (3746111).

11238321 is an equidigital number, since it uses as much as digits as its factorization.

11238321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3746110.

The product of its digits is 288, while the sum is 21.

The square root of 11238321 is about 3352.3605116395. The cubic root of 11238321 is about 223.9926722199.

The spelling of 11238321 in words is "eleven million, two hundred thirty-eight thousand, three hundred twenty-one".