231504230 has 16 divisors (see below), whose sum is σ = 420397344. Its totient is φ = 91781760.

The previous prime is 231504209. The next prime is 231504257. The reversal of 231504230 is 32405132.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101306 + ... + 103565.

It is an arithmetic number, because the mean of its divisors is an integer number (26274834).

Almost surely, 2^231504230 is an apocalyptic number.

231504230 is a deficient number, since it is larger than the sum of its proper divisors (188893114).

231504230 is a wasteful number, since it uses less digits than its factorization.

231504230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204991.

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

The square root of 231504230 is about 15215.2630604929. The cubic root of 231504230 is about 614.0253626167.

Adding to 231504230 its reverse (32405132), we get a palindrome (263909362).

The spelling of 231504230 in words is "two hundred thirty-one million, five hundred four thousand, two hundred thirty".