20211313202011 has 2 divisors, whose sum is σ = 20211313202012. Its totient is φ = 20211313202010.

The previous prime is 20211313201997. The next prime is 20211313202039. The reversal of 20211313202011 is 11020231311202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20211313202011 - 2¹¹ = 20211313199963 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20211313202011.

It is not a weakly prime, because it can be changed into another prime (20211313202051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105656601005 + 10105656601006.

It is an arithmetic number, because the mean of its divisors is an integer number (10105656601006).

Almost surely, 2^{20211313202011} is an apocalyptic number.

20211313202011 is a deficient number, since it is larger than the sum of its proper divisors (1).

20211313202011 is an equidigital number, since it uses as much as digits as its factorization.

20211313202011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 20211313202011 its reverse (11020231311202), we get a palindrome (31231544513213).

The spelling of 20211313202011 in words is "twenty trillion, two hundred eleven billion, three hundred thirteen million, two hundred two thousand, eleven".