12432244133 has 4 divisors (see below), whose sum is σ = 12440640108. Its totient is φ = 12423848160.

The previous prime is 12432244093. The next prime is 12432244157. The reversal of 12432244133 is 33144223421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2203551364 + 10228692769 = 46942^2 + 101137^2 .

It is a cyclic number.

It is not a de Polignac number, because 12432244133 - 2¹⁴ = 12432227749 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12432244096 and 12432244105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12432244733) 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, 4195766 + ... + 4198727.

It is an arithmetic number, because the mean of its divisors is an integer number (3110160027).

Almost surely, 2^12432244133 is an apocalyptic number.

It is an amenable number.

12432244133 is a deficient number, since it is larger than the sum of its proper divisors (8395975).

12432244133 is an equidigital number, since it uses as much as digits as its factorization.

12432244133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8395974.

The product of its digits is 13824, while the sum is 29.

Adding to 12432244133 its reverse (33144223421), we get a palindrome (45576467554).

The spelling of 12432244133 in words is "twelve billion, four hundred thirty-two million, two hundred forty-four thousand, one hundred thirty-three".