9911109120 has 160 divisors (see below), whose sum is σ = 34565287680. Its totient is φ = 2402672640.

The previous prime is 9911109097. The next prime is 9911109199. The reversal of 9911109120 is 219011199.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 25821 + ... + 143139.

It is an arithmetic number, because the mean of its divisors is an integer number (216033048).

Almost surely, 2^9911109120 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 9911109120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17282643840).

9911109120 is an abundant number, since it is smaller than the sum of its proper divisors (24654178560).

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

9911109120 is a wasteful number, since it uses less digits than its factorization.

9911109120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117356 (or 117340 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 33.

The square root of 9911109120 is about 99554.5534870204. The cubic root of 9911109120 is about 2148.0320279305.

It can be divided in two parts, 991 and 1109120, that added together give a palindrome (1110111).

The spelling of 9911109120 in words is "nine billion, nine hundred eleven million, one hundred nine thousand, one hundred twenty".