231004206 has 12 divisors (see below), whose sum is σ = 500509152. Its totient is φ = 77001396.

The previous prime is 231004181. The next prime is 231004229. The reversal of 231004206 is 602400132.

It is a happy number.

231004206 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 12833567 = 231004206 / (2 + 3 + 1 + 0 + 0 + 4 + 2 + 0 + 6).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6416766 + ... + 6416801.

It is an arithmetic number, because the mean of its divisors is an integer number (41709096).

Almost surely, 2^231004206 is an apocalyptic number.

231004206 is an abundant number, since it is smaller than the sum of its proper divisors (269504946).

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

231004206 is a wasteful number, since it uses less digits than its factorization.

231004206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12833575 (or 12833572 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 231004206 is about 15198.8225201823. The cubic root of 231004206 is about 613.5829679181.

Adding to 231004206 its reverse (602400132), we get a palindrome (833404338).

The spelling of 231004206 in words is "two hundred thirty-one million, four thousand, two hundred six".