12420355024 has 80 divisors (see below), whose sum is σ = 31581550080. Its totient is φ = 4584401280.

The previous prime is 12420355021. The next prime is 12420355033. The reversal of 12420355024 is 42055302421.

12420355024 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 (28).

It is a junction number, because it is equal to n+sod(n) for n = 12420354983 and 12420355001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12420355021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 241894 + ... + 288709.

It is an arithmetic number, because the mean of its divisors is an integer number (394769376).

Almost surely, 2^12420355024 is an apocalyptic number.

12420355024 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12420355024 is an abundant number, since it is smaller than the sum of its proper divisors (19161195056).

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

12420355024 is a wasteful number, since it uses less digits than its factorization.

12420355024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530648 (or 530642 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 12420355024 its reverse (42055302421), we get a palindrome (54475657445).

The spelling of 12420355024 in words is "twelve billion, four hundred twenty million, three hundred fifty-five thousand, twenty-four".