311342313231233 has 4 divisors (see below), whose sum is σ = 316446285579348. Its totient is φ = 306238340883120.

The previous prime is 311342313231221. The next prime is 311342313231251. The reversal of 311342313231233 is 332132313243113.

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 139791179582224 + 171551133649009 = 11823332^2 + 13097753^2 .

It is a cyclic number.

It is not a de Polignac number, because 311342313231233 - 2¹⁸ = 311342312969089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311342313231193 and 311342313231202.

It is not an unprimeable number, because it can be changed into a prime (311342313231293) 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, 2551986173966 + ... + 2551986174087.

It is an arithmetic number, because the mean of its divisors is an integer number (79111571394837).

Almost surely, 2^{311342313231233} is an apocalyptic number.

It is an amenable number.

311342313231233 is a deficient number, since it is larger than the sum of its proper divisors (5103972348115).

311342313231233 is an equidigital number, since it uses as much as digits as its factorization.

311342313231233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5103972348114.

The product of its digits is 69984, while the sum is 35.

Adding to 311342313231233 its reverse (332132313243113), we get a palindrome (643474626474346).

The spelling of 311342313231233 in words is "three hundred eleven trillion, three hundred forty-two billion, three hundred thirteen million, two hundred thirty-one thousand, two hundred thirty-three".