11223320 has 16 divisors (see below), whose sum is σ = 25252560. Its totient is φ = 4489312.

The previous prime is 11223313. The next prime is 11223341. The reversal of 11223320 is 2332211.

It is a happy number.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 11223295 and 11223304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140252 + ... + 140331.

It is an arithmetic number, because the mean of its divisors is an integer number (1578285).

Almost surely, 2^11223320 is an apocalyptic number.

11223320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11223320 is an abundant number, since it is smaller than the sum of its proper divisors (14029240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11223320 is a wasteful number, since it uses less digits than its factorization.

11223320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280594 (or 280590 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 11223320 is about 3350.1223858241. The cubic root of 11223320 is about 223.8929654452.

Adding to 11223320 its reverse (2332211), we get a palindrome (13555531).

It can be divided in two parts, 112 and 23320, that added together give a palindrome (23432).

The spelling of 11223320 in words is "eleven million, two hundred twenty-three thousand, three hundred twenty".