231132332 has 12 divisors (see below), whose sum is σ = 405987120. Its totient is φ = 115136016.

The previous prime is 231132299. The next prime is 231132337. The reversal of 231132332 is 233231132.

It is not an unprimeable number, because it can be changed into a prime (231132337) 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, 106328 + ... + 108479.

It is an arithmetic number, because the mean of its divisors is an integer number (33832260).

Almost surely, 2^231132332 is an apocalyptic number.

It is an amenable number.

231132332 is a deficient number, since it is larger than the sum of its proper divisors (174854788).

231132332 is a wasteful number, since it uses less digits than its factorization.

231132332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215080 (or 215078 counting only the distinct ones).

The product of its digits is 648, while the sum is 20.

The square root of 231132332 is about 15203.0369334551. The cubic root of 231132332 is about 613.6963877881.

Adding to 231132332 its reverse (233231132), we get a palindrome (464363464).

It can be divided in two parts, 2311 and 32332, that added together give a palindrome (34643).

The spelling of 231132332 in words is "two hundred thirty-one million, one hundred thirty-two thousand, three hundred thirty-two".