431304322231 has 2 divisors, whose sum is σ = 431304322232. Its totient is φ = 431304322230.

The previous prime is 431304322223. The next prime is 431304322247. The reversal of 431304322231 is 132223403134.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 431304322231 - 2³ = 431304322223 is a prime.

It is a super-2 number, since 2×431304322231² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 431304322231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431304322531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215652161115 + 215652161116.

It is an arithmetic number, because the mean of its divisors is an integer number (215652161116).

Almost surely, 2^431304322231 is an apocalyptic number.

431304322231 is a deficient number, since it is larger than the sum of its proper divisors (1).

431304322231 is an equidigital number, since it uses as much as digits as its factorization.

431304322231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 431304322231 its reverse (132223403134), we get a palindrome (563527725365).

The spelling of 431304322231 in words is "four hundred thirty-one billion, three hundred four million, three hundred twenty-two thousand, two hundred thirty-one".