1113991200 has 648 divisors, whose sum is σ = 4840565184. Its totient is φ = 235699200.

The previous prime is 1113991183. The next prime is 1113991201. The reversal of 1113991200 is 21993111.

It is not an unprimeable number, because it can be changed into a prime (1113991201) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 35935185 + ... + 35935215.

It is an arithmetic number, because the mean of its divisors is an integer number (7470008).

Almost surely, 2^1113991200 is an apocalyptic number.

1113991200 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 1113991200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2420282592).

1113991200 is an abundant number, since it is smaller than the sum of its proper divisors (3726573984).

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

1113991200 is a wasteful number, since it uses less digits than its factorization.

1113991200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118 (or 71 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 27.

The square root of 1113991200 is about 33376.5067075630. The cubic root of 1113991200 is about 1036.6383071178.

The spelling of 1113991200 in words is "one billion, one hundred thirteen million, nine hundred ninety-one thousand, two hundred".