12012013120 has 112 divisors (see below), whose sum is σ = 29929701888. Its totient is φ = 4583208960.

The previous prime is 12012013099. The next prime is 12012013129. The reversal of 12012013120 is 2131021021.

It is a self number, because there is not a number n which added to its sum of digits gives 12012013120.

It is not an unprimeable number, because it can be changed into a prime (12012013129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2919865 + ... + 2923975.

Almost surely, 2^12012013120 is an apocalyptic number.

12012013120 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 12012013120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14964850944).

12012013120 is an abundant number, since it is smaller than the sum of its proper divisors (17917688768).

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

12012013120 is a wasteful number, since it uses less digits than its factorization.

12012013120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4548 (or 4538 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 12012013120 its reverse (2131021021), we get a palindrome (14143034141).

The spelling of 12012013120 in words is "twelve billion, twelve million, thirteen thousand, one hundred twenty".