331011030020 has 48 divisors (see below), whose sum is σ = 802923020928. Its totient is φ = 113287196160.

The previous prime is 331011029989. The next prime is 331011030023. The reversal of 331011030020 is 20030110133.

It is a junction number, because it is equal to n+sod(n) for n = 331011029977 and 331011030004.

It is not an unprimeable number, because it can be changed into a prime (331011030023) by changing a digit.

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, 44249072 + ... + 44256551.

It is an arithmetic number, because the mean of its divisors is an integer number (16727562936).

Almost surely, 2^331011030020 is an apocalyptic number.

It is an amenable number.

331011030020 is an abundant number, since it is smaller than the sum of its proper divisors (471911990908).

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

331011030020 is a wasteful number, since it uses less digits than its factorization.

331011030020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88505660 (or 88505658 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 331011030020 its reverse (20030110133), we get a palindrome (351041140153).

The spelling of 331011030020 in words is "three hundred thirty-one billion, eleven million, thirty thousand, twenty".