11323520 has 64 divisors (see below), whose sum is σ = 29174040. Its totient is φ = 4177920.

The previous prime is 11323519. The next prime is 11323549. The reversal of 11323520 is 2532311.

It can be written as a sum of positive squares in 4 ways, for example, as 5053504 + 6270016 = 2248^2 + 2504^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7640 + ... + 9000.

Almost surely, 2^11323520 is an apocalyptic number.

11323520 is a gapful number since it is divisible by the number (10) 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 11323520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14587020).

11323520 is an abundant number, since it is smaller than the sum of its proper divisors (17850520).

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

11323520 is a wasteful number, since it uses less digits than its factorization.

11323520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393 (or 1381 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 11323520 is about 3365.0438332955. The cubic root of 11323520 is about 224.5572858574.

Adding to 11323520 its reverse (2532311), we get a palindrome (13855831).

The spelling of 11323520 in words is "eleven million, three hundred twenty-three thousand, five hundred twenty".