12432423234 has 64 divisors (see below), whose sum is σ = 31392829440. Its totient is φ = 3188315520.

The previous prime is 12432423233. The next prime is 12432423239. The reversal of 12432423234 is 43232423421.

It is not an unprimeable number, because it can be changed into a prime (12432423233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 133819 + ... + 206814.

It is an arithmetic number, because the mean of its divisors is an integer number (490512960).

Almost surely, 2^12432423234 is an apocalyptic number.

12432423234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12432423234 is an abundant number, since it is smaller than the sum of its proper divisors (18960406206).

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

12432423234 is a wasteful number, since it uses less digits than its factorization.

12432423234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340735.

The product of its digits is 27648, while the sum is 30.

Adding to 12432423234 its reverse (43232423421), we get a palindrome (55664846655).

The spelling of 12432423234 in words is "twelve billion, four hundred thirty-two million, four hundred twenty-three thousand, two hundred thirty-four".