232131320 has 16 divisors (see below), whose sum is σ = 522295560. Its totient is φ = 92852512.

The previous prime is 232131247. The next prime is 232131323. The reversal of 232131320 is 23131232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232131323) 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, 2901602 + ... + 2901681.

Almost surely, 2^232131320 is an apocalyptic number.

232131320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232131320 is an abundant number, since it is smaller than the sum of its proper divisors (290164240).

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

232131320 is a wasteful number, since it uses less digits than its factorization.

232131320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5803294 (or 5803290 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 232131320 is about 15235.8563920772. The cubic root of 232131320 is about 614.5792790872.

Adding to 232131320 its reverse (23131232), we get a palindrome (255262552).

The spelling of 232131320 in words is "two hundred thirty-two million, one hundred thirty-one thousand, three hundred twenty".