12003232120 has 32 divisors (see below), whose sum is σ = 29462479920. Its totient is φ = 4364811520.

The previous prime is 12003232093. The next prime is 12003232127. The reversal of 12003232120 is 2123230021.

It is a junction number, because it is equal to n+sod(n) for n = 12003232094 and 12003232103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12003232127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13639597 + ... + 13640476.

Almost surely, 2^12003232120 is an apocalyptic number.

12003232120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12003232120 is an abundant number, since it is smaller than the sum of its proper divisors (17459247800).

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

12003232120 is a wasteful number, since it uses less digits than its factorization.

12003232120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27280095 (or 27280091 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 12003232120 its reverse (2123230021), we get a palindrome (14126462141).

The spelling of 12003232120 in words is "twelve billion, three million, two hundred thirty-two thousand, one hundred twenty".