1113204040 has 64 divisors (see below), whose sum is σ = 2704181760. Its totient is φ = 409992960.

The previous prime is 1113204031. The next prime is 1113204041. The reversal of 1113204040 is 404023111.

It is not an unprimeable number, because it can be changed into a prime (1113204041) 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 15 ways as a sum of consecutive naturals, for example, 221637 + ... + 226603.

It is an arithmetic number, because the mean of its divisors is an integer number (42252840).

Almost surely, 2^1113204040 is an apocalyptic number.

1113204040 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 1113204040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1352090880).

1113204040 is an abundant number, since it is smaller than the sum of its proper divisors (1590977720).

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

1113204040 is a wasteful number, since it uses less digits than its factorization.

1113204040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5422 (or 5418 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1113204040 is about 33364.7124968881. The cubic root of 1113204040 is about 1036.3940824226.

Adding to 1113204040 its reverse (404023111), we get a palindrome (1517227151).

The spelling of 1113204040 in words is "one billion, one hundred thirteen million, two hundred four thousand, forty".