231204530 has 32 divisors (see below), whose sum is σ = 434600640. Its totient is φ = 88446400.

The previous prime is 231204509. The next prime is 231204557. The reversal of 231204530 is 35402132.

It is a happy number.

231204530 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27305 + ... + 34755.

It is an arithmetic number, because the mean of its divisors is an integer number (13581270).

Almost surely, 2^231204530 is an apocalyptic number.

231204530 is a deficient number, since it is larger than the sum of its proper divisors (203396110).

231204530 is a wasteful number, since it uses less digits than its factorization.

231204530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7594.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 231204530 is about 15205.4112078562. The cubic root of 231204530 is about 613.7602805357.

Adding to 231204530 its reverse (35402132), we get a palindrome (266606662).

The spelling of 231204530 in words is "two hundred thirty-one million, two hundred four thousand, five hundred thirty".