12432213144 has 48 divisors (see below), whose sum is σ = 36260624400. Its totient is φ = 3825296064.

The previous prime is 12432213137. The next prime is 12432213149. The reversal of 12432213144 is 44131223421.

12432213144 is a `hidden beast` number, since 1 + 2 + 432 + 213 + 14 + 4 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12432213149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6640204 + ... + 6642075.

It is an arithmetic number, because the mean of its divisors is an integer number (755429675).

Almost surely, 2^12432213144 is an apocalyptic number.

It is an amenable number.

12432213144 is an abundant number, since it is smaller than the sum of its proper divisors (23828411256).

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

12432213144 is a wasteful number, since it uses less digits than its factorization.

12432213144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13282304 (or 13282297 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

Adding to 12432213144 its reverse (44131223421), we get a palindrome (56563436565).

The spelling of 12432213144 in words is "twelve billion, four hundred thirty-two million, two hundred thirteen thousand, one hundred forty-four".