331110020 has 24 divisors (see below), whose sum is σ = 736233624. Its totient is φ = 124653056.

The previous prime is 331109959. The next prime is 331110049. The reversal of 331110020 is 20011133.

It can be written as a sum of positive squares in 4 ways, for example, as 3717184 + 327392836 = 1928^2 + 18094^2 .

It is a junction number, because it is equal to n+sod(n) for n = 331109983 and 331110010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 486587 + ... + 487266.

It is an arithmetic number, because the mean of its divisors is an integer number (30676401).

Almost surely, 2^331110020 is an apocalyptic number.

It is an amenable number.

331110020 is an abundant number, since it is smaller than the sum of its proper divisors (405123604).

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

331110020 is a wasteful number, since it uses less digits than its factorization.

331110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973879 (or 973877 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 331110020 is about 18196.4287705033. The cubic root of 331110020 is about 691.8162748581.

Adding to 331110020 its reverse (20011133), we get a palindrome (351121153).

It can be divided in two parts, 3311 and 10020, that added together give a palindrome (13331).

The spelling of 331110020 in words is "three hundred thirty-one million, one hundred ten thousand, twenty".