201320533 has 2 divisors, whose sum is σ = 201320534. Its totient is φ = 201320532.

The previous prime is 201320521. The next prime is 201320543. The reversal of 201320533 is 335023102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 177875569 + 23444964 = 13337^2 + 4842^2 .

It is a cyclic number.

It is not a de Polignac number, because 201320533 - 2⁵ = 201320501 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201320533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201320543) 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, 100660266 + 100660267.

It is an arithmetic number, because the mean of its divisors is an integer number (100660267).

Almost surely, 2^201320533 is an apocalyptic number.

It is an amenable number.

201320533 is a deficient number, since it is larger than the sum of its proper divisors (1).

201320533 is an equidigital number, since it uses as much as digits as its factorization.

201320533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 201320533 is about 14188.7467029333. The cubic root of 201320533 is about 586.0878125578.

Adding to 201320533 its reverse (335023102), we get a palindrome (536343635).

The spelling of 201320533 in words is "two hundred one million, three hundred twenty thousand, five hundred thirty-three".