11320518 has 48 divisors (see below), whose sum is σ = 25740288. Its totient is φ = 3313200.

The previous prime is 11320511. The next prime is 11320537. The reversal of 11320518 is 81502311.

It is a super-3 number, since 3×11320518³ (a number of 22 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (21) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 11320494 and 11320503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11320511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22255 + ... + 22757.

It is an arithmetic number, because the mean of its divisors is an integer number (536256).

Almost surely, 2^11320518 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11320518, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12870144).

11320518 is an abundant number, since it is smaller than the sum of its proper divisors (14419770).

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

11320518 is a wasteful number, since it uses less digits than its factorization.

11320518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561 (or 550 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 11320518 is about 3364.5977471311. The cubic root of 11320518 is about 224.5374398333.

Adding to 11320518 its reverse (81502311), we get a palindrome (92822829).

The spelling of 11320518 in words is "eleven million, three hundred twenty thousand, five hundred eighteen".