201020323 has 12 divisors (see below), whose sum is σ = 242468400. Its totient is φ = 163232496.

The previous prime is 201020317. The next prime is 201020327. The reversal of 201020323 is 323020102.

It is a happy number.

It is not a de Polignac number, because 201020323 - 2⁹ = 201019811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201020327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37248 + ... + 42301.

It is an arithmetic number, because the mean of its divisors is an integer number (20205700).

Almost surely, 2^201020323 is an apocalyptic number.

201020323 is a deficient number, since it is larger than the sum of its proper divisors (41448077).

201020323 is an equidigital number, since it uses as much as digits as its factorization.

201020323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79594 (or 79575 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 201020323 is about 14178.1635975891. The cubic root of 201020323 is about 585.7963421169.

Adding to 201020323 its reverse (323020102), we get a palindrome (524040425).

The spelling of 201020323 in words is "two hundred one million, twenty thousand, three hundred twenty-three".