243113324400 has 120 divisors (see below), whose sum is σ = 865303389360. Its totient is φ = 64830216960.

The previous prime is 243113324383. The next prime is 243113324401. The reversal of 243113324400 is 4423311342.

243113324400 is a `hidden beast` number, since 24 + 311 + 3 + 324 + 4 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243113324401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11244447 + ... + 11266046.

It is an arithmetic number, because the mean of its divisors is an integer number (7210861578).

Almost surely, 2^243113324400 is an apocalyptic number.

243113324400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243113324400 is an abundant number, since it is smaller than the sum of its proper divisors (622190064960).

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

243113324400 is a wasteful number, since it uses less digits than its factorization.

243113324400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22510520 (or 22510503 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 243113324400 its reverse (4423311342), we get a palindrome (247536635742).

The spelling of 243113324400 in words is "two hundred forty-three billion, one hundred thirteen million, three hundred twenty-four thousand, four hundred".