331302330020 has 48 divisors (see below), whose sum is σ = 709920288000. Its totient is φ = 129844565760.

The previous prime is 331302330019. The next prime is 331302330061. The reversal of 331302330020 is 20033203133.

It is a super-2 number, since 2×331302330020² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 331302329974 and 331302330001.

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 15 ways as a sum of consecutive naturals, for example, 593345 + ... + 1007304.

It is an arithmetic number, because the mean of its divisors is an integer number (14790006000).

Almost surely, 2^331302330020 is an apocalyptic number.

It is an amenable number.

331302330020 is an abundant number, since it is smaller than the sum of its proper divisors (378617957980).

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

331302330020 is a wasteful number, since it uses less digits than its factorization.

331302330020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1600868 (or 1600866 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 20.

Adding to 331302330020 its reverse (20033203133), we get a palindrome (351335533153).

The spelling of 331302330020 in words is "three hundred thirty-one billion, three hundred two million, three hundred thirty thousand, twenty".