231313243332 has 96 divisors (see below), whose sum is σ = 579339371520. Its totient is φ = 71620156800.

The previous prime is 231313243331. The next prime is 231313243393. The reversal of 231313243332 is 233342313132.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 231313243332.

It is not an unprimeable number, because it can be changed into a prime (231313243331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2323123 + ... + 2420645.

It is an arithmetic number, because the mean of its divisors is an integer number (6034785120).

Almost surely, 2^231313243332 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 231313243332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289669685760).

231313243332 is an abundant number, since it is smaller than the sum of its proper divisors (348026128188).

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

231313243332 is a wasteful number, since it uses less digits than its factorization.

231313243332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97753 (or 97751 counting only the distinct ones).

The product of its digits is 23328, while the sum is 30.

Adding to 231313243332 its reverse (233342313132), we get a palindrome (464655556464).

The spelling of 231313243332 in words is "two hundred thirty-one billion, three hundred thirteen million, two hundred forty-three thousand, three hundred thirty-two".