331233020 has 24 divisors (see below), whose sum is σ = 695931264. Its totient is φ = 132428096.

The previous prime is 331233013. The next prime is 331233031. The reversal of 331233020 is 20332133.

It is a self number, because there is not a number n which added to its sum of digits gives 331233020.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78197 + ... + 82323.

It is an arithmetic number, because the mean of its divisors is an integer number (28997136).

Almost surely, 2^331233020 is an apocalyptic number.

It is an amenable number.

331233020 is an abundant number, since it is smaller than the sum of its proper divisors (364698244).

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

331233020 is a wasteful number, since it uses less digits than its factorization.

331233020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8149 (or 8147 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 331233020 is about 18199.8082407480. The cubic root of 331233020 is about 691.9019290335.

Adding to 331233020 its reverse (20332133), we get a palindrome (351565153).

The spelling of 331233020 in words is "three hundred thirty-one million, two hundred thirty-three thousand, twenty".