311253823 has 16 divisors (see below), whose sum is σ = 325013920. Its totient is φ = 297851904.

The previous prime is 311253809. The next prime is 311253827. The reversal of 311253823 is 328352113.

It is a cyclic number.

It is not a de Polignac number, because 311253823 - 2⁹ = 311253311 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311253791 and 311253800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311253827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 718615 + ... + 719047.

It is an arithmetic number, because the mean of its divisors is an integer number (20313370).

Almost surely, 2^311253823 is an apocalyptic number.

311253823 is a deficient number, since it is larger than the sum of its proper divisors (13760097).

311253823 is a wasteful number, since it uses less digits than its factorization.

311253823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778.

The product of its digits is 4320, while the sum is 28.

The square root of 311253823 is about 17642.3871117261. The cubic root of 311253823 is about 677.7011638316.

The spelling of 311253823 in words is "three hundred eleven million, two hundred fifty-three thousand, eight hundred twenty-three".