11388211 has 4 divisors (see below), whose sum is σ = 11492800. Its totient is φ = 11283624.

The previous prime is 11388199. The next prime is 11388227. The reversal of 11388211 is 11288311.

11388211 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11288311 = 53 ⋅212987.

It is a cyclic number.

It is not a de Polignac number, because 11388211 - 2¹¹ = 11386163 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (11382211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52131 + ... + 52348.

It is an arithmetic number, because the mean of its divisors is an integer number (2873200).

Almost surely, 2^11388211 is an apocalyptic number.

11388211 is a deficient number, since it is larger than the sum of its proper divisors (104589).

11388211 is a wasteful number, since it uses less digits than its factorization.

11388211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104588.

The product of its digits is 384, while the sum is 25.

The square root of 11388211 is about 3374.6423514204. The cubic root of 11388211 is about 224.9841042268.

The spelling of 11388211 in words is "eleven million, three hundred eighty-eight thousand, two hundred eleven".