2123310317 has 2 divisors, whose sum is σ = 2123310318. Its totient is φ = 2123310316.

The previous prime is 2123310271. The next prime is 2123310331. The reversal of 2123310317 is 7130133212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2076716041 + 46594276 = 45571^2 + 6826^2 .

It is a cyclic number.

It is not a de Polignac number, because 2123310317 - 2²⁰ = 2122261741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2123310292 and 2123310301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2123310377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061655158 + 1061655159.

It is an arithmetic number, because the mean of its divisors is an integer number (1061655159).

Almost surely, 2^2123310317 is an apocalyptic number.

It is an amenable number.

2123310317 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123310317 is an equidigital number, since it uses as much as digits as its factorization.

2123310317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 2123310317 is about 46079.3914564852. The cubic root of 2123310317 is about 1285.2999480473.

Adding to 2123310317 its reverse (7130133212), we get a palindrome (9253443529).

The spelling of 2123310317 in words is "two billion, one hundred twenty-three million, three hundred ten thousand, three hundred seventeen".