12143334432 has 24 divisors (see below), whose sum is σ = 31876253136. Its totient is φ = 4047778112.

The previous prime is 12143334391. The next prime is 12143334433. The reversal of 12143334432 is 23443334121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×12143334432² (a number of 21 digits) contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12143334432.

It is not an unprimeable number, because it can be changed into a prime (12143334433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63246438 + ... + 63246629.

It is an arithmetic number, because the mean of its divisors is an integer number (1328177214).

Almost surely, 2^12143334432 is an apocalyptic number.

12143334432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12143334432 is an abundant number, since it is smaller than the sum of its proper divisors (19732918704).

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

12143334432 is a wasteful number, since it uses less digits than its factorization.

12143334432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126493080 (or 126493072 counting only the distinct ones).

The product of its digits is 20736, while the sum is 30.

Adding to 12143334432 its reverse (23443334121), we get a palindrome (35586668553).

The spelling of 12143334432 in words is "twelve billion, one hundred forty-three million, three hundred thirty-four thousand, four hundred thirty-two".