1113520040 has 16 divisors (see below), whose sum is σ = 2505420180. Its totient is φ = 445408000.

The previous prime is 1113520013. The next prime is 1113520049. The reversal of 1113520040 is 400253111.

It can be written as a sum of positive squares in 2 ways, for example, as 1112756164 + 763876 = 33358^2 + 874^2 .

It is not an unprimeable number, because it can be changed into a prime (1113520049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13918961 + ... + 13919040.

Almost surely, 2^1113520040 is an apocalyptic number.

1113520040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1113520040 is an abundant number, since it is smaller than the sum of its proper divisors (1391900140).

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

1113520040 is a wasteful number, since it uses less digits than its factorization.

1113520040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27838012 (or 27838008 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1113520040 is about 33369.4477029513. The cubic root of 1113520040 is about 1036.4921385843.

Adding to 1113520040 its reverse (400253111), we get a palindrome (1513773151).

The spelling of 1113520040 in words is "one billion, one hundred thirteen million, five hundred twenty thousand, forty".