42243314173 has 2 divisors, whose sum is σ = 42243314174. Its totient is φ = 42243314172.

The previous prime is 42243314171. The next prime is 42243314221. The reversal of 42243314173 is 37141334224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42163694244 + 79619929 = 205338^2 + 8923^2 .

It is a cyclic number.

It is not a de Polignac number, because 42243314173 - 2¹ = 42243314171 is a prime.

Together with 42243314171, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42243314171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21121657086 + 21121657087.

It is an arithmetic number, because the mean of its divisors is an integer number (21121657087).

Almost surely, 2^42243314173 is an apocalyptic number.

It is an amenable number.

42243314173 is a deficient number, since it is larger than the sum of its proper divisors (1).

42243314173 is an equidigital number, since it uses as much as digits as its factorization.

42243314173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 34.

Adding to 42243314173 its reverse (37141334224), we get a palindrome (79384648397).

The spelling of 42243314173 in words is "forty-two billion, two hundred forty-three million, three hundred fourteen thousand, one hundred seventy-three".