1113320120 has 64 divisors (see below), whose sum is σ = 2784313440. Its totient is φ = 397196800.

The previous prime is 1113320107. The next prime is 1113320177. The reversal of 1113320120 is 210233111.

It is a junction number, because it is equal to n+sod(n) for n = 1113320095 and 1113320104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 551 + ... + 47190.

Almost surely, 2^1113320120 is an apocalyptic number.

1113320120 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 1113320120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1392156720).

1113320120 is an abundant number, since it is smaller than the sum of its proper divisors (1670993320).

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

1113320120 is a wasteful number, since it uses less digits than its factorization.

1113320120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47816 (or 47812 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1113320120 is about 33366.4520139616. The cubic root of 1113320120 is about 1036.4301047028.

Adding to 1113320120 its reverse (210233111), we get a palindrome (1323553231).

The spelling of 1113320120 in words is "one billion, one hundred thirteen million, three hundred twenty thousand, one hundred twenty".