11322921 has 4 divisors (see below), whose sum is σ = 15097232. Its totient is φ = 7548612.

The previous prime is 11322869. The next prime is 11322931. The reversal of 11322921 is 12922311.

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: 12922311 = 3 ⋅4307437.

It is not a de Polignac number, because 11322921 - 2¹⁰ = 11321897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11322931) 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 3 ways as a sum of consecutive naturals, for example, 1887151 + ... + 1887156.

It is an arithmetic number, because the mean of its divisors is an integer number (3774308).

Almost surely, 2^11322921 is an apocalyptic number.

It is an amenable number.

11322921 is a deficient number, since it is larger than the sum of its proper divisors (3774311).

11322921 is an equidigital number, since it uses as much as digits as its factorization.

11322921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3774310.

The product of its digits is 216, while the sum is 21.

The square root of 11322921 is about 3364.9548288201. The cubic root of 11322921 is about 224.5533261881.

The spelling of 11322921 in words is "eleven million, three hundred twenty-two thousand, nine hundred twenty-one".