2318322173 has 2 divisors, whose sum is σ = 2318322174. Its totient is φ = 2318322172.

The previous prime is 2318322161. The next prime is 2318322187. The reversal of 2318322173 is 3712238132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1386668644 + 931653529 = 37238^2 + 30523^2 .

It is a cyclic number.

It is not a de Polignac number, because 2318322173 - 2⁴ = 2318322157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2318322143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1159161086 + 1159161087.

It is an arithmetic number, because the mean of its divisors is an integer number (1159161087).

Almost surely, 2^2318322173 is an apocalyptic number.

It is an amenable number.

2318322173 is a deficient number, since it is larger than the sum of its proper divisors (1).

2318322173 is an equidigital number, since it uses as much as digits as its factorization.

2318322173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 32.

The square root of 2318322173 is about 48148.9581714911. The cubic root of 2318322173 is about 1323.5019829106.

The spelling of 2318322173 in words is "two billion, three hundred eighteen million, three hundred twenty-two thousand, one hundred seventy-three".