231031432200320 has 64 divisors (see below), whose sum is σ = 554108571878400. Its totient is φ = 92111554649088.

The previous prime is 231031432200319. The next prime is 231031432200323. The reversal of 231031432200320 is 23002234130132.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 231031432200320.

It is not an unprimeable number, because it can be changed into a prime (231031432200323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 587729600 + ... + 588122559.

It is an arithmetic number, because the mean of its divisors is an integer number (8657946435600).

Almost surely, 2^{231031432200320} is an apocalyptic number.

231031432200320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231031432200320 is an abundant number, since it is smaller than the sum of its proper divisors (323077139678080).

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

231031432200320 is a wasteful number, since it uses less digits than its factorization.

231031432200320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175852485 (or 1175852473 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 231031432200320 its reverse (23002234130132), we get a palindrome (254033666330452).

The spelling of 231031432200320 in words is "two hundred thirty-one trillion, thirty-one billion, four hundred thirty-two million, two hundred thousand, three hundred twenty".