311315323 has 16 divisors (see below), whose sum is σ = 360858240. Its totient is φ = 265593600.

The previous prime is 311315317. The next prime is 311315351. The reversal of 311315323 is 323513113.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 311315323 - 2⁹ = 311314811 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311315294 and 311315303.

It is not an unprimeable number, because it can be changed into a prime (311315363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15403 + ... + 29323.

It is an arithmetic number, because the mean of its divisors is an integer number (22553640).

Almost surely, 2^311315323 is an apocalyptic number.

311315323 is a deficient number, since it is larger than the sum of its proper divisors (49542917).

311315323 is a wasteful number, since it uses less digits than its factorization.

311315323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14058.

The product of its digits is 810, while the sum is 22.

The square root of 311315323 is about 17644.1299870524. The cubic root of 311315323 is about 677.7457960832.

Adding to 311315323 its reverse (323513113), we get a palindrome (634828436).

The spelling of 311315323 in words is "three hundred eleven million, three hundred fifteen thousand, three hundred twenty-three".