231321100230 has 144 divisors (see below), whose sum is σ = 662006021040. Its totient is φ = 55999405440.

The previous prime is 231321100229. The next prime is 231321100291. The reversal of 231321100230 is 32001123132.

231321100230 is a `hidden beast` number, since 2 + 313 + 21 + 100 + 230 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 7967881 + ... + 7996859.

It is an arithmetic number, because the mean of its divisors is an integer number (4597264035).

Almost surely, 2^231321100230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231321100230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331003010520).

231321100230 is an abundant number, since it is smaller than the sum of its proper divisors (430684920810).

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

231321100230 is a wasteful number, since it uses less digits than its factorization.

231321100230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29747 (or 29733 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 231321100230 its reverse (32001123132), we get a palindrome (263322223362).

The spelling of 231321100230 in words is "two hundred thirty-one billion, three hundred twenty-one million, one hundred thousand, two hundred thirty".