20200312311317 has 2 divisors, whose sum is σ = 20200312311318. Its totient is φ = 20200312311316.

The previous prime is 20200312311299. The next prime is 20200312311343. The reversal of 20200312311317 is 71311321300202.

It is an a-pointer prime, because the next prime (20200312311343) can be obtained adding 20200312311317 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10349307757156 + 9851004554161 = 3217034^2 + 3138631^2 .

It is a cyclic number.

It is not a de Polignac number, because 20200312311317 - 2⁴⁰ = 19100800683541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20200312311217) 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, 10100156155658 + 10100156155659.

It is an arithmetic number, because the mean of its divisors is an integer number (10100156155659).

Almost surely, 2^{20200312311317} is an apocalyptic number.

It is an amenable number.

20200312311317 is a deficient number, since it is larger than the sum of its proper divisors (1).

20200312311317 is an equidigital number, since it uses as much as digits as its factorization.

20200312311317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

Adding to 20200312311317 its reverse (71311321300202), we get a palindrome (91511633611519).

The spelling of 20200312311317 in words is "twenty trillion, two hundred billion, three hundred twelve million, three hundred eleven thousand, three hundred seventeen".