11223013 has 4 divisors (see below), whose sum is σ = 11232000. Its totient is φ = 11214028.

The previous prime is 11223007. The next prime is 11223031. The reversal of 11223013 is 31032211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 31032211 = 7 ⋅4433173.

It is a cyclic number.

It is not a de Polignac number, because 11223013 - 2⁹ = 11222501 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11222984 and 11223002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11223073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2245 + ... + 5242.

It is an arithmetic number, because the mean of its divisors is an integer number (2808000).

Almost surely, 2^11223013 is an apocalyptic number.

It is an amenable number.

11223013 is a deficient number, since it is larger than the sum of its proper divisors (8987).

11223013 is an equidigital number, since it uses as much as digits as its factorization.

11223013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8986.

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

The square root of 11223013 is about 3350.0765662892. The cubic root of 11223013 is about 223.8909239884.

Adding to 11223013 its reverse (31032211), we get a palindrome (42255224).

The spelling of 11223013 in words is "eleven million, two hundred twenty-three thousand, thirteen".