311230320311 has 8 divisors (see below), whose sum is σ = 324804484224. Its totient is φ = 297659690680.

The previous prime is 311230320293. The next prime is 311230320407. The reversal of 311230320311 is 113023032113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 311230320311 - 2²² = 311226126007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311230320911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 702821 + ... + 1056606.

It is an arithmetic number, because the mean of its divisors is an integer number (40600560528).

Almost surely, 2^311230320311 is an apocalyptic number.

311230320311 is a deficient number, since it is larger than the sum of its proper divisors (13574163913).

311230320311 is a wasteful number, since it uses less digits than its factorization.

311230320311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1767141.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 311230320311 its reverse (113023032113), we get a palindrome (424253352424).

The spelling of 311230320311 in words is "three hundred eleven billion, two hundred thirty million, three hundred twenty thousand, three hundred eleven".