331303322020 has 24 divisors (see below), whose sum is σ = 758985792768. Its totient is φ = 120473935200.

The previous prime is 331303321991. The next prime is 331303322039. The reversal of 331303322020 is 20223303133.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 331303321982 and 331303322000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 752961876 + ... + 752962315.

It is an arithmetic number, because the mean of its divisors is an integer number (31624408032).

Almost surely, 2^331303322020 is an apocalyptic number.

It is an amenable number.

331303322020 is an abundant number, since it is smaller than the sum of its proper divisors (427682470748).

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

331303322020 is a wasteful number, since it uses less digits than its factorization.

331303322020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1505924211 (or 1505924209 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 22.

Adding to 331303322020 its reverse (20223303133), we get a palindrome (351526625153).

The spelling of 331303322020 in words is "three hundred thirty-one billion, three hundred three million, three hundred twenty-two thousand, twenty".