31321302322020 has 96 divisors (see below), whose sum is σ = 89376582169728. Its totient is φ = 8192717524992.

The previous prime is 31321302322007. The next prime is 31321302322049. The reversal of 31321302322020 is 2022320312313.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 11582932 + ... + 14028788.

It is an arithmetic number, because the mean of its divisors is an integer number (931006064268).

Almost surely, 2^{31321302322020} is an apocalyptic number.

31321302322020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31321302322020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44688291084864).

31321302322020 is an abundant number, since it is smaller than the sum of its proper divisors (58055279847708).

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

31321302322020 is a wasteful number, since it uses less digits than its factorization.

31321302322020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2449949 (or 2449947 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 31321302322020 its reverse (2022320312313), we get a palindrome (33343622634333).

The spelling of 31321302322020 in words is "thirty-one trillion, three hundred twenty-one billion, three hundred two million, three hundred twenty-two thousand, twenty".