311440333034321 has 8 divisors (see below), whose sum is σ = 315825908765184. Its totient is φ = 307057980811680.

The previous prime is 311440333034279. The next prime is 311440333034353. The reversal of 311440333034321 is 123430333044113.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311440333034321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311440333034021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 805682465 + ... + 806068926.

It is an arithmetic number, because the mean of its divisors is an integer number (39478238595648).

Almost surely, 2^{311440333034321} is an apocalyptic number.

It is an amenable number.

311440333034321 is a deficient number, since it is larger than the sum of its proper divisors (4385575730863).

311440333034321 is a wasteful number, since it uses less digits than its factorization.

311440333034321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1611754111.

The product of its (nonzero) digits is 93312, while the sum is 35.

Adding to 311440333034321 its reverse (123430333044113), we get a palindrome (434870666078434).

The spelling of 311440333034321 in words is "three hundred eleven trillion, four hundred forty billion, three hundred thirty-three million, thirty-four thousand, three hundred twenty-one".