12012320120 has 32 divisors (see below), whose sum is σ = 27431125200. Its totient is φ = 4733211648.

The previous prime is 12012320093. The next prime is 12012320161. The reversal of 12012320120 is 2102321021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12012320095 and 12012320104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2238425 + ... + 2243784.

Almost surely, 2^12012320120 is an apocalyptic number.

12012320120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12012320120 is an abundant number, since it is smaller than the sum of its proper divisors (15418805080).

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

12012320120 is a wasteful number, since it uses less digits than its factorization.

12012320120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4482287 (or 4482283 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 12012320120 its reverse (2102321021), we get a palindrome (14114641141).

Subtracting from 12012320120 its reverse (2102321021), we obtain a palindrome (9909999099).

The spelling of 12012320120 in words is "twelve billion, twelve million, three hundred twenty thousand, one hundred twenty".