311440344240311 has 16 divisors (see below), whose sum is σ = 365890576803360. Its totient is φ = 261346669240320.

The previous prime is 311440344240269. The next prime is 311440344240313. The reversal of 311440344240311 is 113042443044113.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311440344240311 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 (311440344240313) 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 15 ways as a sum of consecutive naturals, for example, 12425891 + ... + 27879803.

It is an arithmetic number, because the mean of its divisors is an integer number (22868161050210).

Almost surely, 2^{311440344240311} is an apocalyptic number.

311440344240311 is a deficient number, since it is larger than the sum of its proper divisors (54450232563049).

311440344240311 is a wasteful number, since it uses less digits than its factorization.

311440344240311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15594866.

The product of its (nonzero) digits is 55296, while the sum is 35.

Adding to 311440344240311 its reverse (113042443044113), we get a palindrome (424482787284424).

The spelling of 311440344240311 in words is "three hundred eleven trillion, four hundred forty billion, three hundred forty-four million, two hundred forty thousand, three hundred eleven".