316345321843 has 2 divisors, whose sum is σ = 316345321844. Its totient is φ = 316345321842.

The previous prime is 316345321841. The next prime is 316345321921. The reversal of 316345321843 is 348123543613.

It is a weak prime.

It is an emirp because it is prime and its reverse (348123543613) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 316345321843 - 2¹ = 316345321841 is a prime.

Together with 316345321841, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 316345321843.

It is not a weakly prime, because it can be changed into another prime (316345321841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158172660921 + 158172660922.

It is an arithmetic number, because the mean of its divisors is an integer number (158172660922).

Almost surely, 2^316345321843 is an apocalyptic number.

316345321843 is a deficient number, since it is larger than the sum of its proper divisors (1).

316345321843 is an equidigital number, since it uses as much as digits as its factorization.

316345321843 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 316345321843 in words is "three hundred sixteen billion, three hundred forty-five million, three hundred twenty-one thousand, eight hundred forty-three".