12401344432 has 10 divisors (see below), whose sum is σ = 24027604868. Its totient is φ = 6200672208.

The previous prime is 12401344411. The next prime is 12401344481. The reversal of 12401344432 is 23444310421.

It is a self number, because there is not a number n which added to its sum of digits gives 12401344432.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 387541998 + ... + 387542029.

Almost surely, 2^12401344432 is an apocalyptic number.

It is an amenable number.

12401344432 is a deficient number, since it is larger than the sum of its proper divisors (11626260436).

12401344432 is an equidigital number, since it uses as much as digits as its factorization.

12401344432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775084035 (or 775084029 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 12401344432 its reverse (23444310421), we get a palindrome (35845654853).

The spelling of 12401344432 in words is "twelve billion, four hundred one million, three hundred forty-four thousand, four hundred thirty-two".