331210020 has 48 divisors (see below), whose sum is σ = 930460608. Its totient is φ = 88030080.

The previous prime is 331210001. The next prime is 331210021. The reversal of 331210020 is 20012133.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 331209978 and 331210005.

It is not an unprimeable number, because it can be changed into a prime (331210021) 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, 9430 + ... + 27410.

It is an arithmetic number, because the mean of its divisors is an integer number (19384596).

Almost surely, 2^331210020 is an apocalyptic number.

331210020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

331210020 is an abundant number, since it is smaller than the sum of its proper divisors (599250588).

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

331210020 is a wasteful number, since it uses less digits than its factorization.

331210020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18300 (or 18298 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 331210020 is about 18199.1763549893. The cubic root of 331210020 is about 691.8859140111.

Adding to 331210020 its reverse (20012133), we get a palindrome (351222153).

The spelling of 331210020 in words is "three hundred thirty-one million, two hundred ten thousand, twenty".