12030312112120 has 128 divisors (see below), whose sum is σ = 28733249543040. Its totient is φ = 4517568184320.

The previous prime is 12030312112111. The next prime is 12030312112127. The reversal of 12030312112120 is 2121121303021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12030312112127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 480604005 + ... + 480629035.

It is an arithmetic number, because the mean of its divisors is an integer number (224478512055).

Almost surely, 2^{12030312112120} is an apocalyptic number.

12030312112120 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 12030312112120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14366624771520).

12030312112120 is an abundant number, since it is smaller than the sum of its proper divisors (16702937430920).

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

12030312112120 is a wasteful number, since it uses less digits than its factorization.

12030312112120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26825 (or 26821 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 12030312112120 its reverse (2121121303021), we get a palindrome (14151433415141).

The spelling of 12030312112120 in words is "twelve trillion, thirty billion, three hundred twelve million, one hundred twelve thousand, one hundred twenty".