12432220231 has 8 divisors (see below), whose sum is σ = 12484622000. Its totient is φ = 12379929408.

The previous prime is 12432220219. The next prime is 12432220247. The reversal of 12432220231 is 13202223421.

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

It is a cyclic number.

It is not a de Polignac number, because 12432220231 - 2⁷ = 12432220103 is a prime.

It is a super-2 number, since 2×12432220231² (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 (12432220211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200785 + ... + 255301.

It is an arithmetic number, because the mean of its divisors is an integer number (1560577750).

Almost surely, 2^12432220231 is an apocalyptic number.

12432220231 is a deficient number, since it is larger than the sum of its proper divisors (52401769).

12432220231 is an equidigital number, since it uses as much as digits as its factorization.

12432220231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55473.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 12432220231 its reverse (13202223421), we get a palindrome (25634443652).

The spelling of 12432220231 in words is "twelve billion, four hundred thirty-two million, two hundred twenty thousand, two hundred thirty-one".