12003242120 has 16 divisors (see below), whose sum is σ = 27007294860. Its totient is φ = 4801296832.

The previous prime is 12003242107. The next prime is 12003242137. The reversal of 12003242120 is 2124230021.

It can be written as a sum of positive squares in 2 ways, for example, as 11622133636 + 381108484 = 107806^2 + 19522^2 .

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, 150040487 + ... + 150040566.

Almost surely, 2^12003242120 is an apocalyptic number.

12003242120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12003242120 is an abundant number, since it is smaller than the sum of its proper divisors (15004052740).

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

12003242120 is a wasteful number, since it uses less digits than its factorization.

12003242120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300081064 (or 300081060 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 12003242120 its reverse (2124230021), we get a palindrome (14127472141).

The spelling of 12003242120 in words is "twelve billion, three million, two hundred forty-two thousand, one hundred twenty".