311441331020144 has 40 divisors (see below), whose sum is σ = 655796098446720. Its totient is φ = 142423417421568.

The previous prime is 311441331020119. The next prime is 311441331020221. The reversal of 311441331020144 is 441020133144113.

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 311441331020144.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6868390592 + ... + 6868435935.

It is an arithmetic number, because the mean of its divisors is an integer number (16394902461168).

Almost surely, 2^{311441331020144} is an apocalyptic number.

It is an amenable number.

311441331020144 is an abundant number, since it is smaller than the sum of its proper divisors (344354767426576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

311441331020144 is a wasteful number, since it uses less digits than its factorization.

311441331020144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13736826657 (or 13736826651 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

Adding to 311441331020144 its reverse (441020133144113), we get a palindrome (752461464164257).

The spelling of 311441331020144 in words is "three hundred eleven trillion, four hundred forty-one billion, three hundred thirty-one million, twenty thousand, one hundred forty-four".