11320520 has 32 divisors (see below), whose sum is σ = 26163000. Its totient is φ = 4405248.

The previous prime is 11320511. The next prime is 11320537. The reversal of 11320520 is 2502311.

It is a happy number.

11320520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 8491396 + 2829124 = 2914^2 + 1682^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11320495 and 11320504.

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, 2345 + ... + 5304.

Almost surely, 2^11320520 is an apocalyptic number.

11320520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11320520 is an abundant number, since it is smaller than the sum of its proper divisors (14842480).

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

11320520 is a wasteful number, since it uses less digits than its factorization.

11320520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7697 (or 7693 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 11320520 is about 3364.5980443435. The cubic root of 11320520 is about 224.5374530563.

Adding to 11320520 its reverse (2502311), we get a palindrome (13822831).

The spelling of 11320520 in words is "eleven million, three hundred twenty thousand, five hundred twenty".