12432121033 has 8 divisors (see below), whose sum is σ = 12525677640. Its totient is φ = 12338605440.

The previous prime is 12432120989. The next prime is 12432121061. The reversal of 12432121033 is 33012123421.

It can be written as a sum of positive squares in 4 ways, for example, as 4043942464 + 8388178569 = 63592^2 + 91587^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12432121033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12432120995 and 12432121013.

It is not an unprimeable number, because it can be changed into a prime (12432121073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 894703 + ... + 908491.

It is an arithmetic number, because the mean of its divisors is an integer number (1565709705).

Almost surely, 2^12432121033 is an apocalyptic number.

It is an amenable number.

12432121033 is a deficient number, since it is larger than the sum of its proper divisors (93556607).

12432121033 is a wasteful number, since it uses less digits than its factorization.

12432121033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20507.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 12432121033 its reverse (33012123421), we get a palindrome (45444244454).

The spelling of 12432121033 in words is "twelve billion, four hundred thirty-two million, one hundred twenty-one thousand, thirty-three".