201263306513 has 2 divisors, whose sum is σ = 201263306514. Its totient is φ = 201263306512.

The previous prime is 201263306509. The next prime is 201263306539. The reversal of 201263306513 is 315603362102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 187157468689 + 14105837824 = 432617^2 + 118768^2 .

It is a cyclic number.

It is not a de Polignac number, because 201263306513 - 2² = 201263306509 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201263306513.

It is not a weakly prime, because it can be changed into another prime (201263506513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100631653256 + 100631653257.

It is an arithmetic number, because the mean of its divisors is an integer number (100631653257).

Almost surely, 2^201263306513 is an apocalyptic number.

It is an amenable number.

201263306513 is a deficient number, since it is larger than the sum of its proper divisors (1).

201263306513 is an equidigital number, since it uses as much as digits as its factorization.

201263306513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 32.

Adding to 201263306513 its reverse (315603362102), we get a palindrome (516866668615).

The spelling of 201263306513 in words is "two hundred one billion, two hundred sixty-three million, three hundred six thousand, five hundred thirteen".