201323311 has 12 divisors (see below), whose sum is σ = 234543600. Its totient is φ = 172304160.

The previous prime is 201323303. The next prime is 201323351. The reversal of 201323311 is 113323102.

It is not a de Polignac number, because 201323311 - 2³ = 201323303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201323351) 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, 34590 + ... + 39988.

It is an arithmetic number, because the mean of its divisors is an integer number (19545300).

Almost surely, 2^201323311 is an apocalyptic number.

201323311 is a deficient number, since it is larger than the sum of its proper divisors (33220289).

201323311 is an equidigital number, since it uses as much as digits as its factorization.

201323311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6174 (or 6167 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 201323311 is about 14188.8445970770. The cubic root of 201323311 is about 586.0905083326.

Adding to 201323311 its reverse (113323102), we get a palindrome (314646413).

The spelling of 201323311 in words is "two hundred one million, three hundred twenty-three thousand, three hundred eleven".