231224443032340 has 192 divisors, whose sum is σ = 511610965544448. Its totient is φ = 87613189171200.

The previous prime is 231224443032301. The next prime is 231224443032389. The reversal of 231224443032340 is 43230344422132.

It is a self number, because there is not a number n which added to its sum of digits gives 231224443032340.

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 63 ways as a sum of consecutive naturals, for example, 17587613647 + ... + 17587626793.

It is an arithmetic number, because the mean of its divisors is an integer number (2664640445544).

Almost surely, 2^{231224443032340} is an apocalyptic number.

231224443032340 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 231224443032340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255805482772224).

231224443032340 is an abundant number, since it is smaller than the sum of its proper divisors (280386522512108).

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

231224443032340 is a wasteful number, since it uses less digits than its factorization.

231224443032340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14258 (or 14256 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 37.

Adding to 231224443032340 its reverse (43230344422132), we get a palindrome (274454787454472).

The spelling of 231224443032340 in words is "two hundred thirty-one trillion, two hundred twenty-four billion, four hundred forty-three million, thirty-two thousand, three hundred forty".