12003420424 has 16 divisors (see below), whose sum is σ = 22875371820. Its totient is φ = 5903321280.

The previous prime is 12003420419. The next prime is 12003420427. The reversal of 12003420424 is 42402430021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11210997924 + 792422500 = 105882^2 + 28150^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12003420395 and 12003420404.

It is not an unprimeable number, because it can be changed into a prime (12003420427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12298099 + ... + 12299074.

Almost surely, 2^12003420424 is an apocalyptic number.

It is an amenable number.

12003420424 is a deficient number, since it is larger than the sum of its proper divisors (10871951396).

12003420424 is a wasteful number, since it uses less digits than its factorization.

12003420424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24597240 (or 24597236 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 12003420424 its reverse (42402430021), we get a palindrome (54405850445).

The spelling of 12003420424 in words is "twelve billion, three million, four hundred twenty thousand, four hundred twenty-four".