11388223 has 16 divisors (see below), whose sum is σ = 14319360. Its totient is φ = 8798400.

The previous prime is 11388199. The next prime is 11388227. The reversal of 11388223 is 32288311.

It is a cyclic number.

It is not a de Polignac number, because 11388223 - 2¹⁷ = 11257151 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11388191 and 11388200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11388227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9523 + ... + 10651.

It is an arithmetic number, because the mean of its divisors is an integer number (894960).

Almost surely, 2^11388223 is an apocalyptic number.

11388223 is a deficient number, since it is larger than the sum of its proper divisors (2931137).

11388223 is a wasteful number, since it uses less digits than its factorization.

11388223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278.

The product of its digits is 2304, while the sum is 28.

The square root of 11388223 is about 3374.6441293861. The cubic root of 11388223 is about 224.9841832503.

It can be divided in two parts, 11388 and 223, that added together give a palindrome (11611).

The spelling of 11388223 in words is "eleven million, three hundred eighty-eight thousand, two hundred twenty-three".