12000120030 has 56 divisors (see below), whose sum is σ = 32385528792. Its totient is φ = 3200030064.

The previous prime is 12000120017. The next prime is 12000120031. The reversal of 12000120030 is 3002100021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 12000119994 and 12000120021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000120031) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 815764 + ... + 830343.

Almost surely, 2^12000120030 is an apocalyptic number.

12000120030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12000120030 is an abundant number, since it is smaller than the sum of its proper divisors (20385408762).

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

12000120030 is an equidigital number, since it uses as much as digits as its factorization.

12000120030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1646132 (or 1646117 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 12000120030 its reverse (3002100021), we get a palindrome (15002220051).

The spelling of 12000120030 in words is "twelve billion, one hundred twenty thousand, thirty".