331032132020 has 48 divisors (see below), whose sum is σ = 713180825280. Its totient is φ = 129025449216.

The previous prime is 331032132017. The next prime is 331032132047. The reversal of 331032132020 is 20231230133.

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 = 331032131983 and 331032132001.

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 15 ways as a sum of consecutive naturals, for example, 1244690 + ... + 1487049.

It is an arithmetic number, because the mean of its divisors is an integer number (14857933860).

Almost surely, 2^331032132020 is an apocalyptic number.

It is an amenable number.

331032132020 is an abundant number, since it is smaller than the sum of its proper divisors (382148693260).

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

331032132020 is a wasteful number, since it uses less digits than its factorization.

331032132020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2731904 (or 2731902 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 331032132020 its reverse (20231230133), we get a palindrome (351263362153).

The spelling of 331032132020 in words is "three hundred thirty-one billion, thirty-two million, one hundred thirty-two thousand, twenty".