1113803712 has 504 divisors, whose sum is σ = 4095536640. Its totient is φ = 287400960.

The previous prime is 1113803707. The next prime is 1113803771. The reversal of 1113803712 is 2173083111.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (504).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 16623903 + ... + 16623969.

Almost surely, 2^1113803712 is an apocalyptic number.

1113803712 is a gapful number since it is divisible by the number (12) 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 1113803712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2047768320).

1113803712 is an abundant number, since it is smaller than the sum of its proper divisors (2981732928).

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

1113803712 is a wasteful number, since it uses less digits than its factorization.

1113803712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 1113803712 is about 33373.6979071843. The cubic root of 1113803712 is about 1036.5801474281.

Adding to 1113803712 its reverse (2173083111), we get a palindrome (3286886823).

The spelling of 1113803712 in words is "one billion, one hundred thirteen million, eight hundred three thousand, seven hundred twelve".