12240401324431 has 8 divisors (see below), whose sum is σ = 14314356366464. Its totient is φ = 10247777852760.

The previous prime is 12240401324377. The next prime is 12240401324507. The reversal of 12240401324431 is 13442310404221.

It is a happy number.

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

It is not a de Polignac number, because 12240401324431 - 2⁷ = 12240401324303 is a prime.

It is a super-2 number, since 2×12240401324431² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12240401324393 and 12240401324402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12240441324431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20332892265 + ... + 20332892866.

It is an arithmetic number, because the mean of its divisors is an integer number (1789294545808).

Almost surely, 2^{12240401324431} is an apocalyptic number.

12240401324431 is a deficient number, since it is larger than the sum of its proper divisors (2073955042033).

12240401324431 is an equidigital number, since it uses as much as digits as its factorization.

12240401324431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40665785181.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 12240401324431 its reverse (13442310404221), we get a palindrome (25682711728652).

The spelling of 12240401324431 in words is "twelve trillion, two hundred forty billion, four hundred one million, three hundred twenty-four thousand, four hundred thirty-one".