201320322641 has 2 divisors, whose sum is σ = 201320322642. Its totient is φ = 201320322640.

The previous prime is 201320322601. The next prime is 201320322649. The reversal of 201320322641 is 146223023102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 198741206416 + 2579116225 = 445804^2 + 50785^2 .

It is a cyclic number.

It is not a de Polignac number, because 201320322641 - 2²² = 201316128337 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 201320322641.

It is not a weakly prime, because it can be changed into another prime (201320322649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100660161320 + 100660161321.

It is an arithmetic number, because the mean of its divisors is an integer number (100660161321).

Almost surely, 2^201320322641 is an apocalyptic number.

It is an amenable number.

201320322641 is a deficient number, since it is larger than the sum of its proper divisors (1).

201320322641 is an equidigital number, since it uses as much as digits as its factorization.

201320322641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 201320322641 its reverse (146223023102), we get a palindrome (347543345743).

The spelling of 201320322641 in words is "two hundred one billion, three hundred twenty million, three hundred twenty-two thousand, six hundred forty-one".