201321323113 has 2 divisors, whose sum is σ = 201321323114. Its totient is φ = 201321323112.

The previous prime is 201321323101. The next prime is 201321323219. The reversal of 201321323113 is 311323123102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201270671424 + 50651689 = 448632^2 + 7117^2 .

It is a cyclic number.

It is not a de Polignac number, because 201321323113 - 2¹³ = 201321314921 is a prime.

It is not a weakly prime, because it can be changed into another prime (201321320113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100660661556 + 100660661557.

It is an arithmetic number, because the mean of its divisors is an integer number (100660661557).

Almost surely, 2^201321323113 is an apocalyptic number.

It is an amenable number.

201321323113 is a deficient number, since it is larger than the sum of its proper divisors (1).

201321323113 is an equidigital number, since it uses as much as digits as its factorization.

201321323113 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 201321323113 its reverse (311323123102), we get a palindrome (512644446215).

The spelling of 201321323113 in words is "two hundred one billion, three hundred twenty-one million, three hundred twenty-three thousand, one hundred thirteen".