331020032 has 36 divisors (see below), whose sum is σ = 755143536. Its totient is φ = 141864960.

The previous prime is 331020023. The next prime is 331020037. The reversal of 331020032 is 230020133.

331020032 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 331019989 and 331020016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331020037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90569 + ... + 94152.

Almost surely, 2^331020032 is an apocalyptic number.

331020032 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

331020032 is an abundant number, since it is smaller than the sum of its proper divisors (424123504).

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

331020032 is an equidigital number, since it uses as much as digits as its factorization.

331020032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184744 (or 184730 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 331020032 is about 18193.9559194805. The cubic root of 331020032 is about 691.7535959902.

Adding to 331020032 its reverse (230020133), we get a palindrome (561040165).

The spelling of 331020032 in words is "three hundred thirty-one million, twenty thousand, thirty-two".