20201310123017 has 2 divisors, whose sum is σ = 20201310123018. Its totient is φ = 20201310123016.

The previous prime is 20201310122977. The next prime is 20201310123139. The reversal of 20201310123017 is 71032101310202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10710591471616 + 9490718651401 = 3272704^2 + 3080701^2 .

It is a cyclic number.

It is not a de Polignac number, because 20201310123017 - 2⁸ = 20201310122761 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20201310122983 and 20201310123001.

It is not a weakly prime, because it can be changed into another prime (20201310126017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100655061508 + 10100655061509.

It is an arithmetic number, because the mean of its divisors is an integer number (10100655061509).

Almost surely, 2^{20201310123017} is an apocalyptic number.

It is an amenable number.

20201310123017 is a deficient number, since it is larger than the sum of its proper divisors (1).

20201310123017 is an equidigital number, since it uses as much as digits as its factorization.

20201310123017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 23.

Adding to 20201310123017 its reverse (71032101310202), we get a palindrome (91233411433219).

The spelling of 20201310123017 in words is "twenty trillion, two hundred one billion, three hundred ten million, one hundred twenty-three thousand, seventeen".