11321211 has 16 divisors (see below), whose sum is σ = 16531200. Its totient is φ = 6834720.

The previous prime is 11321203. The next prime is 11321243. The reversal of 11321211 is 11212311.

It is not a de Polignac number, because 11321211 - 2³ = 11321203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11321251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11026 + ... + 12008.

It is an arithmetic number, because the mean of its divisors is an integer number (1033200).

Almost surely, 2^11321211 is an apocalyptic number.

11321211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11321211 is a deficient number, since it is larger than the sum of its proper divisors (5209989).

11321211 is a wasteful number, since it uses less digits than its factorization.

11321211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1346.

The product of its digits is 12, while the sum is 12.

The square root of 11321211 is about 3364.7007296341. The cubic root of 11321211 is about 224.5420215221.

Adding to 11321211 its reverse (11212311), we get a palindrome (22533522).

Subtracting from 11321211 its reverse (11212311), we obtain a square (108900 = 330²).

The spelling of 11321211 in words is "eleven million, three hundred twenty-one thousand, two hundred eleven".