201263506513 has 2 divisors, whose sum is σ = 201263506514. Its totient is φ = 201263506512.

The previous prime is 201263506501. The next prime is 201263506537. The reversal of 201263506513 is 315605362102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 197298537489 + 3964969024 = 444183^2 + 62968^2 .

It is a cyclic number.

It is not a de Polignac number, because 201263506513 - 2⁹ = 201263506001 is a prime.

It is not a weakly prime, because it can be changed into another prime (201263501513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100631753256 + 100631753257.

It is an arithmetic number, because the mean of its divisors is an integer number (100631753257).

Almost surely, 2^201263506513 is an apocalyptic number.

It is an amenable number.

201263506513 is a deficient number, since it is larger than the sum of its proper divisors (1).

201263506513 is an equidigital number, since it uses as much as digits as its factorization.

201263506513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 34.

Adding to 201263506513 its reverse (315605362102), we get a palindrome (516868868615).

The spelling of 201263506513 in words is "two hundred one billion, two hundred sixty-three million, five hundred six thousand, five hundred thirteen".