231331102230 has 192 divisors, whose sum is σ = 612618531840. Its totient is φ = 55746206208.

The previous prime is 231331102157. The next prime is 231331102231. The reversal of 231331102230 is 32201133132.

231331102230 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 231331102197 and 231331102206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231331102231) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 139607562 + ... + 139609218.

It is an arithmetic number, because the mean of its divisors is an integer number (3190721520).

Almost surely, 2^231331102230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231331102230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306309265920).

231331102230 is an abundant number, since it is smaller than the sum of its proper divisors (381287429610).

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

231331102230 is a wasteful number, since it uses less digits than its factorization.

231331102230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2195 (or 2172 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 231331102230 its reverse (32201133132), we get a palindrome (263532235362).

The spelling of 231331102230 in words is "two hundred thirty-one billion, three hundred thirty-one million, one hundred two thousand, two hundred thirty".