12432505124431 has 8 divisors (see below), whose sum is σ = 14666918488064. Its totient is φ = 10312677061560.

The previous prime is 12432505124401. The next prime is 12432505124503. The reversal of 12432505124431 is 13442150523421.

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 12432505124431 - 2³¹ = 12430357640783 is a prime.

It is a super-2 number, since 2×12432505124431² (a number of 27 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 (12432505124401) 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, 28646324955 + ... + 28646325388.

It is an arithmetic number, because the mean of its divisors is an integer number (1833364811008).

Almost surely, 2^{12432505124431} is an apocalyptic number.

12432505124431 is a deficient number, since it is larger than the sum of its proper divisors (2234413363633).

12432505124431 is an equidigital number, since it uses as much as digits as its factorization.

12432505124431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57292650381.

The product of its (nonzero) digits is 115200, while the sum is 37.

Adding to 12432505124431 its reverse (13442150523421), we get a palindrome (25874655647852).

The spelling of 12432505124431 in words is "twelve trillion, four hundred thirty-two billion, five hundred five million, one hundred twenty-four thousand, four hundred thirty-one".