331232130020 has 144 divisors (see below), whose sum is σ = 790173931008. Its totient is φ = 116424000000.

The previous prime is 331232130007. The next prime is 331232130049. The reversal of 331232130020 is 20031232133.

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 = 331232129974 and 331232130001.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 78843920 + ... + 78848120.

Almost surely, 2^331232130020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331232130020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (395086965504).

331232130020 is an abundant number, since it is smaller than the sum of its proper divisors (458941800988).

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

331232130020 is a wasteful number, since it uses less digits than its factorization.

331232130020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5314 (or 5301 counting only the distinct ones).

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

Adding to 331232130020 its reverse (20031232133), we get a palindrome (351263362153).

The spelling of 331232130020 in words is "three hundred thirty-one billion, two hundred thirty-two million, one hundred thirty thousand, twenty".