12420304024 has 16 divisors (see below), whose sum is σ = 23635654200. Its totient is φ = 6117462912.

The previous prime is 12420303979. The next prime is 12420304067. The reversal of 12420304024 is 42040302421.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12420303986 and 12420304004.

It is a congruent number.

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, 11585569 + ... + 11586640.

Almost surely, 2^12420304024 is an apocalyptic number.

It is an amenable number.

12420304024 is a deficient number, since it is larger than the sum of its proper divisors (11215350176).

12420304024 is a wasteful number, since it uses less digits than its factorization.

12420304024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23172282 (or 23172278 counting only the distinct ones).

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

Adding to 12420304024 its reverse (42040302421), we get a palindrome (54460606445).

The spelling of 12420304024 in words is "twelve billion, four hundred twenty million, three hundred four thousand, twenty-four".