12111013120 has 36 divisors (see below), whose sum is σ = 29009664180. Its totient is φ = 4844404736.

The previous prime is 12111013073. The next prime is 12111013141. The reversal of 12111013120 is 2131011121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2314764544 + 9796248576 = 48112^2 + 98976^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12111013120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4729585 + ... + 4732144.

It is an arithmetic number, because the mean of its divisors is an integer number (805824005).

Almost surely, 2^12111013120 is an apocalyptic number.

12111013120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12111013120 is an abundant number, since it is smaller than the sum of its proper divisors (16898651060).

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

12111013120 is an frugal number, since it uses more digits than its factorization.

12111013120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9461750 (or 9461736 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 12111013120 its reverse (2131011121), we get a palindrome (14242024241).

The spelling of 12111013120 in words is "twelve billion, one hundred eleven million, thirteen thousand, one hundred twenty".