1113320032 has 72 divisors (see below), whose sum is σ = 2420391456. Its totient is φ = 503712000.

The previous prime is 1113319931. The next prime is 1113320041. The reversal of 1113320032 is 2300233111.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 1113319988 and 1113320015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1048782 + ... + 1049842.

It is an arithmetic number, because the mean of its divisors is an integer number (33616548).

Almost surely, 2^1113320032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1113320032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1210195728).

1113320032 is an abundant number, since it is smaller than the sum of its proper divisors (1307071424).

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

1113320032 is a wasteful number, since it uses less digits than its factorization.

1113320032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1364 (or 1345 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1113320032 is about 33366.4506952717. The cubic root of 1113320032 is about 1036.4300773954.

Adding to 1113320032 its reverse (2300233111), we get a palindrome (3413553143).

The spelling of 1113320032 in words is "one billion, one hundred thirteen million, three hundred twenty thousand, thirty-two".