1113000120 has 144 divisors (see below), whose sum is σ = 3679898040. Its totient is φ = 291704832.

The previous prime is 1113000113. The next prime is 1113000151. The reversal of 1113000120 is 210003111.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5766744 + ... + 5766936.

Almost surely, 2^1113000120 is an apocalyptic number.

1113000120 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 1113000120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1839949020).

1113000120 is an abundant number, since it is smaller than the sum of its proper divisors (2566897920).

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

1113000120 is a wasteful number, since it uses less digits than its factorization.

1113000120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486 (or 286 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 1113000120 is about 33361.6564336965. The cubic root of 1113000120 is about 1036.3307953162.

Adding to 1113000120 its reverse (210003111), we get a palindrome (1323003231).

The spelling of 1113000120 in words is "one billion, one hundred thirteen million, one hundred twenty", and thus it is an aban number.