12432120143 has 4 divisors (see below), whose sum is σ = 12432467880. Its totient is φ = 12431772408.

The previous prime is 12432120133. The next prime is 12432120157. The reversal of 12432120143 is 34102123421.

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

It is a cyclic number.

It is not a de Polignac number, because 12432120143 - 2¹⁴ = 12432103759 is a prime.

It is a super-2 number, since 2×12432120143² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12432120133) 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, 113180 + ... + 194097.

It is an arithmetic number, because the mean of its divisors is an integer number (3108116970).

Almost surely, 2^12432120143 is an apocalyptic number.

12432120143 is a deficient number, since it is larger than the sum of its proper divisors (347737).

12432120143 is an equidigital number, since it uses as much as digits as its factorization.

12432120143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347736.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 12432120143 its reverse (34102123421), we get a palindrome (46534243564).

The spelling of 12432120143 in words is "twelve billion, four hundred thirty-two million, one hundred twenty thousand, one hundred forty-three".