2021311022320 has 40 divisors (see below), whose sum is σ = 4861601516160. Its totient is φ = 780644256000.

The previous prime is 2021311022279. The next prime is 2021311022363. The reversal of 2021311022320 is 232201131202.

It is a tau number, because it is divible by the number of its divisors (40).

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, 435625056 + ... + 435629695.

It is an arithmetic number, because the mean of its divisors is an integer number (121540037904).

Almost surely, 2^{2021311022320} is an apocalyptic number.

2021311022320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2021311022320 is an abundant number, since it is smaller than the sum of its proper divisors (2840290493840).

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

2021311022320 is a wasteful number, since it uses less digits than its factorization.

2021311022320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871254793 (or 871254787 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 2021311022320 its reverse (232201131202), we get a palindrome (2253512153522).

The spelling of 2021311022320 in words is "two trillion, twenty-one billion, three hundred eleven million, twenty-two thousand, three hundred twenty".