311330214442 has 72 divisors (see below), whose sum is σ = 538134877152. Its totient is φ = 134997408000.

The previous prime is 311330214407. The next prime is 311330214457. The reversal of 311330214442 is 244412033113.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 311330214442.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 61634817 + ... + 61639867.

It is an arithmetic number, because the mean of its divisors is an integer number (7474095516).

Almost surely, 2^311330214442 is an apocalyptic number.

311330214442 is a deficient number, since it is larger than the sum of its proper divisors (226804662710).

311330214442 is a wasteful number, since it uses less digits than its factorization.

311330214442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5744 (or 5714 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 311330214442 its reverse (244412033113), we get a palindrome (555742247555).

The spelling of 311330214442 in words is "three hundred eleven billion, three hundred thirty million, two hundred fourteen thousand, four hundred forty-two".