431431934287 has 2 divisors, whose sum is σ = 431431934288. Its totient is φ = 431431934286.

The previous prime is 431431934251. The next prime is 431431934291. The reversal of 431431934287 is 782439134134.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 431431934287 - 2⁷ = 431431934159 is a prime.

It is a super-3 number, since 3×431431934287³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 431431934287.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431431934987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215715967143 + 215715967144.

It is an arithmetic number, because the mean of its divisors is an integer number (215715967144).

Almost surely, 2^431431934287 is an apocalyptic number.

431431934287 is a deficient number, since it is larger than the sum of its proper divisors (1).

431431934287 is an equidigital number, since it uses as much as digits as its factorization.

431431934287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 49.

The spelling of 431431934287 in words is "four hundred thirty-one billion, four hundred thirty-one million, nine hundred thirty-four thousand, two hundred eighty-seven".