11213223 has 8 divisors (see below), whose sum is σ = 17086848. Its totient is φ = 6407544.

The previous prime is 11213221. The next prime is 11213231. The reversal of 11213223 is 32231211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11213223 - 2¹ = 11213221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11213221) 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 7 ways as a sum of consecutive naturals, for example, 266961 + ... + 267002.

It is an arithmetic number, because the mean of its divisors is an integer number (2135856).

Almost surely, 2^11213223 is an apocalyptic number.

11213223 is a deficient number, since it is larger than the sum of its proper divisors (5873625).

11213223 is an equidigital number, since it uses as much as digits as its factorization.

11213223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533973.

The product of its digits is 72, while the sum is 15.

The square root of 11213223 is about 3348.6150868680. The cubic root of 11213223 is about 223.8258039297.

Adding to 11213223 its reverse (32231211), we get a palindrome (43444434).

The spelling of 11213223 in words is "eleven million, two hundred thirteen thousand, two hundred twenty-three".