231335680 has 36 divisors (see below), whose sum is σ = 554124312. Its totient is φ = 92533760.

The previous prime is 231335647. The next prime is 231335683. The reversal of 231335680 is 86533132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231335683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89086 + ... + 91645.

It is an arithmetic number, because the mean of its divisors is an integer number (15392342).

Almost surely, 2^231335680 is an apocalyptic number.

231335680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231335680 is an abundant number, since it is smaller than the sum of its proper divisors (322788632).

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

231335680 is an equidigital number, since it uses as much as digits as its factorization.

231335680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180752 (or 180738 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 231335680 is about 15209.7232058969. The cubic root of 231335680 is about 613.8763097580.

The spelling of 231335680 in words is "two hundred thirty-one million, three hundred thirty-five thousand, six hundred eighty".