11013223 has 6 divisors (see below), whose sum is σ = 11925744. Its totient is φ = 10165896.

The previous prime is 11013209. The next prime is 11013227. The reversal of 11013223 is 32231011.

It is a de Polignac number, because none of the positive numbers 2^k-11013223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11013227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32415 + ... + 32752.

It is an arithmetic number, because the mean of its divisors is an integer number (1987624).

Almost surely, 2^11013223 is an apocalyptic number.

11013223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11013223 is a deficient number, since it is larger than the sum of its proper divisors (912521).

11013223 is an equidigital number, since it uses as much as digits as its factorization.

11013223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65193 (or 65180 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 11013223 is about 3318.6176338952. The cubic root of 11013223 is about 222.4870875813.

Adding to 11013223 its reverse (32231011), we get a palindrome (43244234).

It can be divided in two parts, 11013 and 223, that added together give a square (11236 = 106²).

The spelling of 11013223 in words is "eleven million, thirteen thousand, two hundred twenty-three".