431221224231243 has 16 divisors (see below), whose sum is σ = 646543200992640. Its totient is φ = 284017191861672.

The previous prime is 431221224231229. The next prime is 431221224231247. The reversal of 431221224231243 is 342132422122134.

431221224231243 is a `hidden beast` number, since 4 + 3 + 1 + 2 + 212 + 2 + 423 + 12 + 4 + 3 = 666.

It is not a de Polignac number, because 431221224231243 - 2⁵ = 431221224231211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 431221224231198 and 431221224231207.

It is not an unprimeable number, because it can be changed into a prime (431221224231247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96211783621 + ... + 96211788102.

It is an arithmetic number, because the mean of its divisors is an integer number (40408950062040).

Almost surely, 2^{431221224231243} is an apocalyptic number.

431221224231243 is a deficient number, since it is larger than the sum of its proper divisors (215321976761397).

431221224231243 is a wasteful number, since it uses less digits than its factorization.

431221224231243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192423571815 (or 192423571809 counting only the distinct ones).

The product of its digits is 110592, while the sum is 36.

Adding to 431221224231243 its reverse (342132422122134), we get a palindrome (773353646353377).

The spelling of 431221224231243 in words is "four hundred thirty-one trillion, two hundred twenty-one billion, two hundred twenty-four million, two hundred thirty-one thousand, two hundred forty-three".