122020365317 has 2 divisors, whose sum is σ = 122020365318. Its totient is φ = 122020365316.

The previous prime is 122020365301. The next prime is 122020365319. The reversal of 122020365317 is 713563020221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93877283236 + 28143082081 = 306394^2 + 167759^2 .

It is a cyclic number.

It is not a de Polignac number, because 122020365317 - 2⁴ = 122020365301 is a prime.

Together with 122020365319, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122020365319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61010182658 + 61010182659.

It is an arithmetic number, because the mean of its divisors is an integer number (61010182659).

Almost surely, 2^122020365317 is an apocalyptic number.

It is an amenable number.

122020365317 is a deficient number, since it is larger than the sum of its proper divisors (1).

122020365317 is an equidigital number, since it uses as much as digits as its factorization.

122020365317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 32.

Adding to 122020365317 its reverse (713563020221), we get a palindrome (835583385538).

The spelling of 122020365317 in words is "one hundred twenty-two billion, twenty million, three hundred sixty-five thousand, three hundred seventeen".