311443030034020 has 24 divisors (see below), whose sum is σ = 654976861455168. Its totient is φ = 124396926607200.

The previous prime is 311443030034009. The next prime is 311443030034027. The reversal of 311443030034020 is 20430030344113.

It is a self number, because there is not a number n which added to its sum of digits gives 311443030034020.

It is not an unprimeable number, because it can be changed into a prime (311443030034027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11267823736 + ... + 11267851375.

It is an arithmetic number, because the mean of its divisors is an integer number (27290702560632).

Almost surely, 2^{311443030034020} is an apocalyptic number.

It is an amenable number.

311443030034020 is an abundant number, since it is smaller than the sum of its proper divisors (343533831421148).

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

311443030034020 is a wasteful number, since it uses less digits than its factorization.

311443030034020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22535675811 (or 22535675809 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 311443030034020 its reverse (20430030344113), we get a palindrome (331873060378133).

The spelling of 311443030034020 in words is "three hundred eleven trillion, four hundred forty-three billion, thirty million, thirty-four thousand, twenty".