11321005 has 4 divisors (see below), whose sum is σ = 13585212. Its totient is φ = 9056800.

The previous prime is 11321003. The next prime is 11321029. The reversal of 11321005 is 50012311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50012311 = 43 ⋅1163077.

It can be written as a sum of positive squares in 2 ways, for example, as 3736489 + 7584516 = 1933^2 + 2754^2 .

It is not a de Polignac number, because 11321005 - 2¹ = 11321003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11321003) 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, 1132096 + ... + 1132105.

It is an arithmetic number, because the mean of its divisors is an integer number (3396303).

Almost surely, 2^11321005 is an apocalyptic number.

It is an amenable number.

11321005 is a deficient number, since it is larger than the sum of its proper divisors (2264207).

11321005 is an equidigital number, since it uses as much as digits as its factorization.

11321005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2264206.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 11321005 is about 3364.6701175598. The cubic root of 11321005 is about 224.5406595966.

Adding to 11321005 its reverse (50012311), we get a palindrome (61333316).

The spelling of 11321005 in words is "eleven million, three hundred twenty-one thousand, five".