311201323 has 4 divisors (see below), whose sum is σ = 327580360. Its totient is φ = 294822288.

The previous prime is 311201311. The next prime is 311201347. The reversal of 311201323 is 323102113.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 311201323 - 2¹⁷ = 311070251 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311201297 and 311201306.

It is not an unprimeable number, because it can be changed into a prime (311201353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8189490 + ... + 8189527.

It is an arithmetic number, because the mean of its divisors is an integer number (81895090).

Almost surely, 2^311201323 is an apocalyptic number.

311201323 is a deficient number, since it is larger than the sum of its proper divisors (16379037).

311201323 is a wasteful number, since it uses less digits than its factorization.

311201323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16379036.

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

The square root of 311201323 is about 17640.8991550884. The cubic root of 311201323 is about 677.6630584772.

Adding to 311201323 its reverse (323102113), we get a palindrome (634303436).

The spelling of 311201323 in words is "three hundred eleven million, two hundred one thousand, three hundred twenty-three".