12434134512 has 80 divisors (see below), whose sum is σ = 33687129600. Its totient is φ = 3944514816.

The previous prime is 12434134477. The next prime is 12434134549. The reversal of 12434134512 is 21543143421.

12434134512 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 12434134512.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 191398 + ... + 247994.

It is an arithmetic number, because the mean of its divisors is an integer number (421089120).

Almost surely, 2^12434134512 is an apocalyptic number.

12434134512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12434134512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16843564800).

12434134512 is an abundant number, since it is smaller than the sum of its proper divisors (21252995088).

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

12434134512 is a wasteful number, since it uses less digits than its factorization.

12434134512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56830 (or 56824 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

Adding to 12434134512 its reverse (21543143421), we get a palindrome (33977277933).

The spelling of 12434134512 in words is "twelve billion, four hundred thirty-four million, one hundred thirty-four thousand, five hundred twelve".