321434434159 has 2 divisors, whose sum is σ = 321434434160. Its totient is φ = 321434434158.

The previous prime is 321434434129. The next prime is 321434434169. The reversal of 321434434159 is 951434434123.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321434434159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321434434129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160717217079 + 160717217080.

It is an arithmetic number, because the mean of its divisors is an integer number (160717217080).

Almost surely, 2^321434434159 is an apocalyptic number.

321434434159 is a deficient number, since it is larger than the sum of its proper divisors (1).

321434434159 is an equidigital number, since it uses as much as digits as its factorization.

321434434159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 43.

The spelling of 321434434159 in words is "three hundred twenty-one billion, four hundred thirty-four million, four hundred thirty-four thousand, one hundred fifty-nine".