311302323313 has 4 divisors (see below), whose sum is σ = 318895062948. Its totient is φ = 303709583680.

The previous prime is 311302323287. The next prime is 311302323347. The reversal of 311302323313 is 313323203113.

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

It can be written as a sum of positive squares in 2 ways, for example, as 139182717184 + 172119606129 = 373072^2 + 414873^2 .

It is a cyclic number.

It is not a de Polignac number, because 311302323313 - 2⁵ = 311302323281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311302320313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3796369756 + ... + 3796369837.

It is an arithmetic number, because the mean of its divisors is an integer number (79723765737).

Almost surely, 2^311302323313 is an apocalyptic number.

It is an amenable number.

311302323313 is a deficient number, since it is larger than the sum of its proper divisors (7592739635).

311302323313 is an equidigital number, since it uses as much as digits as its factorization.

311302323313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7592739634.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 311302323313 its reverse (313323203113), we get a palindrome (624625526426).

The spelling of 311302323313 in words is "three hundred eleven billion, three hundred two million, three hundred twenty-three thousand, three hundred thirteen".