231030556 has 12 divisors (see below), whose sum is σ = 404739720. Its totient is φ = 115390640.

The previous prime is 231030533. The next prime is 231030571. The reversal of 231030556 is 655030132.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 231030556.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26926 + ... + 34453.

It is an arithmetic number, because the mean of its divisors is an integer number (33728310).

Almost surely, 2^231030556 is an apocalyptic number.

It is an amenable number.

231030556 is a deficient number, since it is larger than the sum of its proper divisors (173709164).

231030556 is a wasteful number, since it uses less digits than its factorization.

231030556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62324 (or 62322 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 231030556 is about 15199.6893389306. The cubic root of 231030556 is about 613.6062969255.

Adding to 231030556 its reverse (655030132), we get a palindrome (886060688).

The spelling of 231030556 in words is "two hundred thirty-one million, thirty thousand, five hundred fifty-six".