20363135017 has 2 divisors, whose sum is σ = 20363135018. Its totient is φ = 20363135016.

The previous prime is 20363134999. The next prime is 20363135033. The reversal of 20363135017 is 71053136302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15587772201 + 4775362816 = 124851^2 + 69104^2 .

It is a cyclic number.

It is not a de Polignac number, because 20363135017 - 2³¹ = 18215651369 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20363135017.

It is not a weakly prime, because it can be changed into another prime (29363135017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10181567508 + 10181567509.

It is an arithmetic number, because the mean of its divisors is an integer number (10181567509).

Almost surely, 2^20363135017 is an apocalyptic number.

It is an amenable number.

20363135017 is a deficient number, since it is larger than the sum of its proper divisors (1).

20363135017 is an equidigital number, since it uses as much as digits as its factorization.

20363135017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 31.

The spelling of 20363135017 in words is "twenty billion, three hundred sixty-three million, one hundred thirty-five thousand, seventeen".