11113580 has 24 divisors (see below), whose sum is σ = 24712128. Its totient is φ = 4183808.

The previous prime is 11113567. The next prime is 11113589. The reversal of 11113580 is 8531111.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (11113589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16004 + ... + 16683.

It is an arithmetic number, because the mean of its divisors is an integer number (1029672).

Almost surely, 2^11113580 is an apocalyptic number.

11113580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11113580 is an abundant number, since it is smaller than the sum of its proper divisors (13598548).

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

11113580 is a wasteful number, since it uses less digits than its factorization.

11113580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32713 (or 32711 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 20.

The square root of 11113580 is about 3333.7036460969. The cubic root of 11113580 is about 223.1608430258.

Adding to 11113580 its reverse (8531111), we get a palindrome (19644691).

The spelling of 11113580 in words is "eleven million, one hundred thirteen thousand, five hundred eighty".