231020232 has 16 divisors (see below), whose sum is σ = 577550640. Its totient is φ = 77006736.

The previous prime is 231020197. The next prime is 231020233. The reversal of 231020232 is 232020132.

It is not an unprimeable number, because it can be changed into a prime (231020233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4812898 + ... + 4812945.

It is an arithmetic number, because the mean of its divisors is an integer number (36096915).

Almost surely, 2^231020232 is an apocalyptic number.

It is an amenable number.

231020232 is an abundant number, since it is smaller than the sum of its proper divisors (346530408).

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

231020232 is a wasteful number, since it uses less digits than its factorization.

231020232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9625852 (or 9625848 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 231020232 is about 15199.3497229322. The cubic root of 231020232 is about 613.5971567697.

Adding to 231020232 its reverse (232020132), we get a palindrome (463040364).

The spelling of 231020232 in words is "two hundred thirty-one million, twenty thousand, two hundred thirty-two".