201322310011021 has 2 divisors, whose sum is σ = 201322310011022. Its totient is φ = 201322310011020.

The previous prime is 201322310010959. The next prime is 201322310011051. The reversal of 201322310011021 is 120110013223102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113121305222500 + 88201004788521 = 10635850^2 + 9391539^2 .

It is a cyclic number.

It is not a de Polignac number, because 201322310011021 - 2⁷ = 201322310010893 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201322310011021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201322310011051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100661155005510 + 100661155005511.

It is an arithmetic number, because the mean of its divisors is an integer number (100661155005511).

Almost surely, 2^{201322310011021} is an apocalyptic number.

It is an amenable number.

201322310011021 is a deficient number, since it is larger than the sum of its proper divisors (1).

201322310011021 is an equidigital number, since it uses as much as digits as its factorization.

201322310011021 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 201322310011021 its reverse (120110013223102), we get a palindrome (321432323234123).

The spelling of 201322310011021 in words is "two hundred one trillion, three hundred twenty-two billion, three hundred ten million, eleven thousand, twenty-one".