231330323040 has 192 divisors, whose sum is σ = 769820163840. Its totient is φ = 58229729280.

The previous prime is 231330323033. The next prime is 231330323069. The reversal of 231330323040 is 40323033132.

It is a happy number.

231330323040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 231330323040.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2480455 + ... + 2572025.

It is an arithmetic number, because the mean of its divisors is an integer number (4009480020).

Almost surely, 2^231330323040 is an apocalyptic number.

231330323040 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 231330323040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (384910081920).

231330323040 is an abundant number, since it is smaller than the sum of its proper divisors (538489840800).

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

231330323040 is a wasteful number, since it uses less digits than its factorization.

231330323040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91885 (or 91877 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 24.

Adding to 231330323040 its reverse (40323033132), we get a palindrome (271653356172).

The spelling of 231330323040 in words is "two hundred thirty-one billion, three hundred thirty million, three hundred twenty-three thousand, forty".