12421012134 has 16 divisors (see below), whose sum is σ = 24985621872. Its totient is φ = 4116404448.

The previous prime is 12421012133. The next prime is 12421012151. The reversal of 12421012134 is 43121012421.

12421012134 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12421012134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12421012133) 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 7 ways as a sum of consecutive naturals, for example, 5982109 + ... + 5984184.

It is an arithmetic number, because the mean of its divisors is an integer number (1561601367).

Almost surely, 2^12421012134 is an apocalyptic number.

12421012134 is an abundant number, since it is smaller than the sum of its proper divisors (12564609738).

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

12421012134 is a wasteful number, since it uses less digits than its factorization.

12421012134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11966471.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 12421012134 its reverse (43121012421), we get a palindrome (55542024555).

The spelling of 12421012134 in words is "twelve billion, four hundred twenty-one million, twelve thousand, one hundred thirty-four".