12423133442 has 8 divisors (see below), whose sum is σ = 18799609356. Its totient is φ = 6156596992.

The previous prime is 12423133417. The next prime is 12423133453. The reversal of 12423133442 is 24433132421.

12423133442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12314118961 + 109014481 = 110969^2 + 10441^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27484583 + ... + 27485034.

Almost surely, 2^12423133442 is an apocalyptic number.

12423133442 is a deficient number, since it is larger than the sum of its proper divisors (6376475914).

12423133442 is a wasteful number, since it uses less digits than its factorization.

12423133442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54969732.

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

Adding to 12423133442 its reverse (24433132421), we get a palindrome (36856265863).

The spelling of 12423133442 in words is "twelve billion, four hundred twenty-three million, one hundred thirty-three thousand, four hundred forty-two".