311115323 has 2 divisors, whose sum is σ = 311115324. Its totient is φ = 311115322.

The previous prime is 311115313. The next prime is 311115331. The reversal of 311115323 is 323511113.

It is a strong prime.

It is an emirp because it is prime and its reverse (323511113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 311115323 - 2⁴ = 311115307 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 311115295 and 311115304.

It is not a weakly prime, because it can be changed into another prime (311115313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155557661 + 155557662.

It is an arithmetic number, because the mean of its divisors is an integer number (155557662).

Almost surely, 2^311115323 is an apocalyptic number.

311115323 is a deficient number, since it is larger than the sum of its proper divisors (1).

311115323 is an equidigital number, since it uses as much as digits as its factorization.

311115323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 270, while the sum is 20.

The square root of 311115323 is about 17638.4614691872. The cubic root of 311115323 is about 677.6006290165.

Adding to 311115323 its reverse (323511113), we get a palindrome (634626436).

The spelling of 311115323 in words is "three hundred eleven million, one hundred fifteen thousand, three hundred twenty-three".