211020203313013 has 2 divisors, whose sum is σ = 211020203313014. Its totient is φ = 211020203313012.

The previous prime is 211020203313001. The next prime is 211020203313107. The reversal of 211020203313013 is 310313302020112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199391400842404 + 11628802470609 = 14120602^2 + 3410103^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211020203313013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211020273313013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105510101656506 + 105510101656507.

It is an arithmetic number, because the mean of its divisors is an integer number (105510101656507).

Almost surely, 2^{211020203313013} is an apocalyptic number.

It is an amenable number.

211020203313013 is a deficient number, since it is larger than the sum of its proper divisors (1).

211020203313013 is an equidigital number, since it uses as much as digits as its factorization.

211020203313013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 211020203313013 its reverse (310313302020112), we get a palindrome (521333505333125).

The spelling of 211020203313013 in words is "two hundred eleven trillion, twenty billion, two hundred three million, three hundred thirteen thousand, thirteen".