12003421430000 has 600 divisors, whose sum is σ = 39315578162784. Its totient is φ = 3453500160000.

The previous prime is 12003421429963. The next prime is 12003421430009. The reversal of 12003421430000 is 3412430021.

12003421430000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12003421430009) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 110055494 + ... + 110164506.

Almost surely, 2^{12003421430000} is an apocalyptic number.

12003421430000 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 12003421430000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19657789081392).

12003421430000 is an abundant number, since it is smaller than the sum of its proper divisors (27312156732784).

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

12003421430000 is a wasteful number, since it uses less digits than its factorization.

12003421430000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109083 (or 109051 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12003421430000 its reverse (3412430021), we get a palindrome (12006833860021).

It can be divided in two parts, 12003421 and 430000, that added together give a palindrome (12433421).

The spelling of 12003421430000 in words is "twelve trillion, three billion, four hundred twenty-one million, four hundred thirty thousand".