201002321243 has 2 divisors, whose sum is σ = 201002321244. Its totient is φ = 201002321242.

The previous prime is 201002321207. The next prime is 201002321249. The reversal of 201002321243 is 342123200102.

201002321243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201002321243 - 2¹⁴ = 201002304859 is a prime.

It is not a weakly prime, because it can be changed into another prime (201002321249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100501160621 + 100501160622.

It is an arithmetic number, because the mean of its divisors is an integer number (100501160622).

Almost surely, 2^201002321243 is an apocalyptic number.

201002321243 is a deficient number, since it is larger than the sum of its proper divisors (1).

201002321243 is an equidigital number, since it uses as much as digits as its factorization.

201002321243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 201002321243 its reverse (342123200102), we get a palindrome (543125521345).

The spelling of 201002321243 in words is "two hundred one billion, two million, three hundred twenty-one thousand, two hundred forty-three".