431252142243 has 16 divisors (see below), whose sum is σ = 646157057280. Its totient is φ = 253847414304.

The previous prime is 431252142239. The next prime is 431252142247. The reversal of 431252142243 is 342241252134.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (431252142239) and next prime (431252142247).

It is not a de Polignac number, because 431252142243 - 2² = 431252142239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (431252142247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 240384913 + ... + 240386706.

It is an arithmetic number, because the mean of its divisors is an integer number (40384816080).

Almost surely, 2^431252142243 is an apocalyptic number.

431252142243 is a deficient number, since it is larger than the sum of its proper divisors (214904915037).

431252142243 is a wasteful number, since it uses less digits than its factorization.

431252142243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480771658.

The product of its digits is 46080, while the sum is 33.

Adding to 431252142243 its reverse (342241252134), we get a palindrome (773493394377).

The spelling of 431252142243 in words is "four hundred thirty-one billion, two hundred fifty-two million, one hundred forty-two thousand, two hundred forty-three".