231143327800 has 384 divisors, whose sum is σ = 681352819200. Its totient is φ = 70836480000.

The previous prime is 231143327777. The next prime is 231143327803. The reversal of 231143327800 is 8723341132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231143327803) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 269083771 + ... + 269084629.

It is an arithmetic number, because the mean of its divisors is an integer number (1774356300).

Almost surely, 2^231143327800 is an apocalyptic number.

231143327800 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 231143327800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (340676409600).

231143327800 is an abundant number, since it is smaller than the sum of its proper divisors (450209491400).

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

231143327800 is a wasteful number, since it uses less digits than its factorization.

231143327800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167 (or 1158 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

Adding to 231143327800 its reverse (8723341132), we get a palindrome (239866668932).

It can be divided in two parts, 23114332 and 7800, that added together give a palindrome (23122132).

The spelling of 231143327800 in words is "two hundred thirty-one billion, one hundred forty-three million, three hundred twenty-seven thousand, eight hundred".