431560423169 has 2 divisors, whose sum is σ = 431560423170. Its totient is φ = 431560423168.

The previous prime is 431560423109. The next prime is 431560423213. The reversal of 431560423169 is 961324065134.

It is an a-pointer prime, because the next prime (431560423213) can be obtained adding 431560423169 to its sum of digits (44).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 384042962944 + 47517460225 = 619712^2 + 217985^2 .

It is a cyclic number.

It is not a de Polignac number, because 431560423169 - 2⁸ = 431560422913 is a prime.

It is a super-2 number, since 2×431560423169² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (431560423109) 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 as a sum of consecutive naturals, namely, 215780211584 + 215780211585.

It is an arithmetic number, because the mean of its divisors is an integer number (215780211585).

Almost surely, 2^431560423169 is an apocalyptic number.

It is an amenable number.

431560423169 is a deficient number, since it is larger than the sum of its proper divisors (1).

431560423169 is an equidigital number, since it uses as much as digits as its factorization.

431560423169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 44.

The spelling of 431560423169 in words is "four hundred thirty-one billion, five hundred sixty million, four hundred twenty-three thousand, one hundred sixty-nine".