231243230004 has 72 divisors (see below), whose sum is σ = 570173022720. Its totient is φ = 72932807808.

The previous prime is 231243229993. The next prime is 231243230033. The reversal of 231243230004 is 400032342132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3471597 + ... + 3537579.

It is an arithmetic number, because the mean of its divisors is an integer number (7919069760).

Almost surely, 2^231243230004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231243230004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285086511360).

231243230004 is an abundant number, since it is smaller than the sum of its proper divisors (338929792716).

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

231243230004 is a wasteful number, since it uses less digits than its factorization.

231243230004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66837 (or 66816 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 231243230004 its reverse (400032342132), we get a palindrome (631275572136).

The spelling of 231243230004 in words is "two hundred thirty-one billion, two hundred forty-three million, two hundred thirty thousand, four".