232143312 has 40 divisors (see below), whose sum is σ = 614335680. Its totient is φ = 75493120.

The previous prime is 232143277. The next prime is 232143319. The reversal of 232143312 is 213341232.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232143319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57012 + ... + 60947.

It is an arithmetic number, because the mean of its divisors is an integer number (15358392).

Almost surely, 2^232143312 is an apocalyptic number.

It is an amenable number.

232143312 is an abundant number, since it is smaller than the sum of its proper divisors (382192368).

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

232143312 is a wasteful number, since it uses less digits than its factorization.

232143312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118011 (or 118005 counting only the distinct ones).

The product of its digits is 864, while the sum is 21.

The square root of 232143312 is about 15236.2499323160. The cubic root of 232143312 is about 614.5898620449.

Adding to 232143312 its reverse (213341232), we get a palindrome (445484544).

The spelling of 232143312 in words is "two hundred thirty-two million, one hundred forty-three thousand, three hundred twelve".