12421343016 has 48 divisors (see below), whose sum is σ = 35103800160. Its totient is φ = 3960427680.

The previous prime is 12421342987. The next prime is 12421343023. The reversal of 12421343016 is 61034312421.

It is a happy number.

12421343016 is a `hidden beast` number, since 1 + 2 + 4 + 213 + 430 + 16 = 666.

12421343016 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12421343016² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 3748750 + ... + 3752061.

It is an arithmetic number, because the mean of its divisors is an integer number (731329170).

Almost surely, 2^12421343016 is an apocalyptic number.

It is an amenable number.

12421343016 is an abundant number, since it is smaller than the sum of its proper divisors (22682457144).

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

12421343016 is a wasteful number, since it uses less digits than its factorization.

12421343016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7500846 (or 7500839 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 12421343016 its reverse (61034312421), we get a palindrome (73455655437).

The spelling of 12421343016 in words is "twelve billion, four hundred twenty-one million, three hundred forty-three thousand, sixteen".