11223312 has 40 divisors (see below), whose sum is σ = 29399904. Its totient is φ = 3688704.

The previous prime is 11223283. The next prime is 11223313. The reversal of 11223312 is 21332211.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 11223291 and 11223300.

It is not an unprimeable number, because it can be changed into a prime (11223313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1903 + ... + 5105.

Almost surely, 2^11223312 is an apocalyptic number.

11223312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11223312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14699952).

11223312 is an abundant number, since it is smaller than the sum of its proper divisors (18176592).

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

11223312 is a wasteful number, since it uses less digits than its factorization.

11223312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3287 (or 3281 counting only the distinct ones).

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

The square root of 11223312 is about 3350.1211918377. The cubic root of 11223312 is about 223.8929122481.

Adding to 11223312 its reverse (21332211), we get a palindrome (32555523).

The spelling of 11223312 in words is "eleven million, two hundred twenty-three thousand, three hundred twelve".