201310523 has 2 divisors, whose sum is σ = 201310524. Its totient is φ = 201310522.

The previous prime is 201310511. The next prime is 201310573. The reversal of 201310523 is 325013102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201310523 - 2²⁰ = 200261947 is a prime.

It is not a weakly prime, because it can be changed into another prime (201310573) 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, 100655261 + 100655262.

It is an arithmetic number, because the mean of its divisors is an integer number (100655262).

Almost surely, 2^201310523 is an apocalyptic number.

201310523 is a deficient number, since it is larger than the sum of its proper divisors (1).

201310523 is an equidigital number, since it uses as much as digits as its factorization.

201310523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 201310523 is about 14188.3939542148. The cubic root of 201310523 is about 586.0780986352.

Adding to 201310523 its reverse (325013102), we get a palindrome (526323625).

The spelling of 201310523 in words is "two hundred one million, three hundred ten thousand, five hundred twenty-three".