231324423424 has 72 divisors (see below), whose sum is σ = 480833176320. Its totient is φ = 110933760000.

The previous prime is 231324423413. The next prime is 231324423433. The reversal of 231324423424 is 424324423132.

It is a self number, because there is not a number n which added to its sum of digits gives 231324423424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1017849 + ... + 1224199.

It is an arithmetic number, because the mean of its divisors is an integer number (6678238560).

Almost surely, 2^231324423424 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 231324423424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240416588160).

231324423424 is an abundant number, since it is smaller than the sum of its proper divisors (249508752896).

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

231324423424 is a wasteful number, since it uses less digits than its factorization.

231324423424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206547 (or 206533 counting only the distinct ones).

The product of its digits is 110592, while the sum is 34.

Adding to 231324423424 its reverse (424324423132), we get a palindrome (655648846556).

The spelling of 231324423424 in words is "two hundred thirty-one billion, three hundred twenty-four million, four hundred twenty-three thousand, four hundred twenty-four".