231210041440400 has 240 divisors, whose sum is σ = 610762988899008. Its totient is φ = 83413165056000.

The previous prime is 231210041440387. The next prime is 231210041440403. The reversal of 231210041440400 is 4044140012132.

It is a self number, because there is not a number n which added to its sum of digits gives 231210041440400.

It is not an unprimeable number, because it can be changed into a prime (231210041440403) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 2338405364 + ... + 2338504236.

Almost surely, 2^{231210041440400} is an apocalyptic number.

231210041440400 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 231210041440400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (305381494449504).

231210041440400 is an abundant number, since it is smaller than the sum of its proper divisors (379552947458608).

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

231210041440400 is a wasteful number, since it uses less digits than its factorization.

231210041440400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103090 (or 103079 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 231210041440400 its reverse (4044140012132), we get a palindrome (235254181452532).

The spelling of 231210041440400 in words is "two hundred thirty-one trillion, two hundred ten billion, forty-one million, four hundred forty thousand, four hundred".