20012310317 has 2 divisors, whose sum is σ = 20012310318. Its totient is φ = 20012310316.

The previous prime is 20012310299. The next prime is 20012310341. The reversal of 20012310317 is 71301321002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19585722601 + 426587716 = 139949^2 + 20654^2 .

It is a cyclic number.

It is not a de Polignac number, because 20012310317 - 2²⁸ = 19743874861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20012310347) 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, 10006155158 + 10006155159.

It is an arithmetic number, because the mean of its divisors is an integer number (10006155159).

Almost surely, 2^20012310317 is an apocalyptic number.

It is an amenable number.

20012310317 is a deficient number, since it is larger than the sum of its proper divisors (1).

20012310317 is an equidigital number, since it uses as much as digits as its factorization.

20012310317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 20.

Adding to 20012310317 its reverse (71301321002), we get a palindrome (91313631319).

The spelling of 20012310317 in words is "twenty billion, twelve million, three hundred ten thousand, three hundred seventeen".