231205032 has 96 divisors (see below), whose sum is σ = 677289600. Its totient is φ = 70973952.

The previous prime is 231205021. The next prime is 231205033. The reversal of 231205032 is 230502132.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 231204996 and 231205014.

It is not an unprimeable number, because it can be changed into a prime (231205033) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55519 + ... + 59537.

It is an arithmetic number, because the mean of its divisors is an integer number (7055100).

Almost surely, 2^231205032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231205032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (338644800).

231205032 is an abundant number, since it is smaller than the sum of its proper divisors (446084568).

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

231205032 is a wasteful number, since it uses less digits than its factorization.

231205032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4095 (or 4088 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 231205032 is about 15205.4277151286. The cubic root of 231205032 is about 613.7607247418.

Adding to 231205032 its reverse (230502132), we get a palindrome (461707164).

The spelling of 231205032 in words is "two hundred thirty-one million, two hundred five thousand, thirty-two".