11223613 has 4 divisors (see below), whose sum is σ = 11260480. Its totient is φ = 11186748.

The previous prime is 11223593. The next prime is 11223631. The reversal of 11223613 is 31632211.

11223613 is digitally balanced in base 2, 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 a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31632211 = 13 ⋅2433247.

It is a cyclic number.

It is not a de Polignac number, because 11223613 - 2⁹ = 11223101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11223673) 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, 17973 + ... + 18586.

It is an arithmetic number, because the mean of its divisors is an integer number (2815120).

Almost surely, 2^11223613 is an apocalyptic number.

It is an amenable number.

11223613 is a deficient number, since it is larger than the sum of its proper divisors (36867).

11223613 is an equidigital number, since it uses as much as digits as its factorization.

11223613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36866.

The product of its digits is 216, while the sum is 19.

The square root of 11223613 is about 3350.1661152844. The cubic root of 11223613 is about 223.8949137714.

Adding to 11223613 its reverse (31632211), we get a palindrome (42855824).

The spelling of 11223613 in words is "eleven million, two hundred twenty-three thousand, six hundred thirteen".