311331322342 has 32 divisors (see below), whose sum is σ = 489522991104. Its totient is φ = 148318279200.

The previous prime is 311331322297. The next prime is 311331322363. The reversal of 311331322342 is 243223133113.

It is a self number, because there is not a number n which added to its sum of digits gives 311331322342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3178423 + ... + 3274909.

It is an arithmetic number, because the mean of its divisors is an integer number (15297593472).

Almost surely, 2^311331322342 is an apocalyptic number.

311331322342 is a deficient number, since it is larger than the sum of its proper divisors (178191668762).

311331322342 is a wasteful number, since it uses less digits than its factorization.

311331322342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97324.

The product of its digits is 7776, while the sum is 28.

Adding to 311331322342 its reverse (243223133113), we get a palindrome (554554455455).

The spelling of 311331322342 in words is "three hundred eleven billion, three hundred thirty-one million, three hundred twenty-two thousand, three hundred forty-two".