231343333030040 has 256 divisors, whose sum is σ = 660429072138240. Its totient is φ = 70840195776000.

The previous prime is 231343333030039. The next prime is 231343333030079. The reversal of 231343333030040 is 40030333343132.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 231343333029979 and 231343333030006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 60017345 + ... + 63755535.

It is an arithmetic number, because the mean of its divisors is an integer number (2579801063040).

Almost surely, 2^{231343333030040} is an apocalyptic number.

231343333030040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231343333030040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330214536069120).

231343333030040 is an abundant number, since it is smaller than the sum of its proper divisors (429085739108200).

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

231343333030040 is a wasteful number, since it uses less digits than its factorization.

231343333030040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3738574 (or 3738570 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 32.

Adding to 231343333030040 its reverse (40030333343132), we get a palindrome (271373666373172).

The spelling of 231343333030040 in words is "two hundred thirty-one trillion, three hundred forty-three billion, three hundred thirty-three million, thirty thousand, forty".