211020203313001 has 2 divisors, whose sum is σ = 211020203313002. Its totient is φ = 211020203313000.

The previous prime is 211020203312977. The next prime is 211020203313013. The reversal of 211020203313001 is 100313302020112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210919736501776 + 100466811225 = 14523076^2 + 316965^2 .

It is a cyclic number.

It is not a de Polignac number, because 211020203313001 - 2¹¹ = 211020203310953 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211020203313001.

It is not a weakly prime, because it can be changed into another prime (211020203313301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105510101656500 + 105510101656501.

It is an arithmetic number, because the mean of its divisors is an integer number (105510101656501).

Almost surely, 2^{211020203313001} is an apocalyptic number.

It is an amenable number.

211020203313001 is a deficient number, since it is larger than the sum of its proper divisors (1).

211020203313001 is an equidigital number, since it uses as much as digits as its factorization.

211020203313001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 211020203313001 its reverse (100313302020112), we get a palindrome (311333505333113).

The spelling of 211020203313001 in words is "two hundred eleven trillion, twenty billion, two hundred three million, three hundred thirteen thousand, one".