231330031332 has 12 divisors (see below), whose sum is σ = 539770073136. Its totient is φ = 77110010440.

The previous prime is 231330031307. The next prime is 231330031337. The reversal of 231330031332 is 233130033132.

231330031332 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (231330031337) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 9638751294 + ... + 9638751317.

It is an arithmetic number, because the mean of its divisors is an integer number (44980839428).

Almost surely, 2^231330031332 is an apocalyptic number.

It is an amenable number.

231330031332 is an abundant number, since it is smaller than the sum of its proper divisors (308440041804).

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

231330031332 is a wasteful number, since it uses less digits than its factorization.

231330031332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19277502618 (or 19277502616 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 24.

Adding to 231330031332 its reverse (233130033132), we get a palindrome (464460064464).

The spelling of 231330031332 in words is "two hundred thirty-one billion, three hundred thirty million, thirty-one thousand, three hundred thirty-two".