2311323173 has 2 divisors, whose sum is σ = 2311323174. Its totient is φ = 2311323172.

The previous prime is 2311323139. The next prime is 2311323181. The reversal of 2311323173 is 3713231132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2214831844 + 96491329 = 47062^2 + 9823^2 .

It is a cyclic number.

It is not a de Polignac number, because 2311323173 - 2⁸ = 2311322917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2311323103) 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, 1155661586 + 1155661587.

It is an arithmetic number, because the mean of its divisors is an integer number (1155661587).

Almost surely, 2^2311323173 is an apocalyptic number.

It is an amenable number.

2311323173 is a deficient number, since it is larger than the sum of its proper divisors (1).

2311323173 is an equidigital number, since it uses as much as digits as its factorization.

2311323173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2268, while the sum is 26.

The square root of 2311323173 is about 48076.2225325576. Note that the first 3 decimals coincide. The cubic root of 2311323173 is about 1322.1687589681.

The spelling of 2311323173 in words is "two billion, three hundred eleven million, three hundred twenty-three thousand, one hundred seventy-three".