231383232 has 42 divisors (see below), whose sum is σ = 663219908. Its totient is φ = 77127552.

The previous prime is 231383231. The next prime is 231383267. The reversal of 231383232 is 232383132.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 231383196 and 231383205.

It is not an unprimeable number, because it can be changed into a prime (231383231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 200278 + ... + 201429.

Almost surely, 2^231383232 is an apocalyptic number.

It is an amenable number.

231383232 is an abundant number, since it is smaller than the sum of its proper divisors (431836676).

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

231383232 is a wasteful number, since it uses less digits than its factorization.

231383232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401725 (or 401712 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 231383232 is about 15211.2863361387. The cubic root of 231383232 is about 613.9183684761.

The spelling of 231383232 in words is "two hundred thirty-one million, three hundred eighty-three thousand, two hundred thirty-two".