2101316563 has 2 divisors, whose sum is σ = 2101316564. Its totient is φ = 2101316562.

The previous prime is 2101316557. The next prime is 2101316573. The reversal of 2101316563 is 3656131012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2101316563 - 2⁵ = 2101316531 is a prime.

It is not a weakly prime, because it can be changed into another prime (2101316573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050658281 + 1050658282.

It is an arithmetic number, because the mean of its divisors is an integer number (1050658282).

Almost surely, 2^2101316563 is an apocalyptic number.

2101316563 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101316563 is an equidigital number, since it uses as much as digits as its factorization.

2101316563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 2101316563 is about 45840.1195788144. The cubic root of 2101316563 is about 1280.8467222796.

Adding to 2101316563 its reverse (3656131012), we get a palindrome (5757447575).

The spelling of 2101316563 in words is "two billion, one hundred one million, three hundred sixteen thousand, five hundred sixty-three".