431612216171 has 2 divisors, whose sum is σ = 431612216172. Its totient is φ = 431612216170.

The previous prime is 431612216093. The next prime is 431612216209. The reversal of 431612216171 is 171612216134.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 431612216171 - 2¹⁰ = 431612215147 is a prime.

It is not a weakly prime, because it can be changed into another prime (431612213171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215806108085 + 215806108086.

It is an arithmetic number, because the mean of its divisors is an integer number (215806108086).

Almost surely, 2^431612216171 is an apocalyptic number.

431612216171 is a deficient number, since it is larger than the sum of its proper divisors (1).

431612216171 is an equidigital number, since it uses as much as digits as its factorization.

431612216171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 35.

The spelling of 431612216171 in words is "four hundred thirty-one billion, six hundred twelve million, two hundred sixteen thousand, one hundred seventy-one".