231331313230 has 16 divisors (see below), whose sum is σ = 420287920560. Its totient is φ = 91667734912.

The previous prime is 231331313221. The next prime is 231331313231. The reversal of 231331313230 is 32313133132.

It is a junction number, because it is equal to n+sod(n) for n = 231331313195 and 231331313204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231331313231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108097675 + ... + 108099814.

It is an arithmetic number, because the mean of its divisors is an integer number (26267995035).

Almost surely, 2^231331313230 is an apocalyptic number.

231331313230 is a deficient number, since it is larger than the sum of its proper divisors (188956607330).

231331313230 is a wasteful number, since it uses less digits than its factorization.

231331313230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216197603.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 231331313230 its reverse (32313133132), we get a palindrome (263644446362).

The spelling of 231331313230 in words is "two hundred thirty-one billion, three hundred thirty-one million, three hundred thirteen thousand, two hundred thirty".