243301111400 has 96 divisors (see below), whose sum is σ = 567853714560. Its totient is φ = 96946295040.

The previous prime is 243301111279. The next prime is 243301111433. The reversal of 243301111400 is 4111103342.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97202549 + ... + 97205051.

It is an arithmetic number, because the mean of its divisors is an integer number (5915142860).

Almost surely, 2^243301111400 is an apocalyptic number.

243301111400 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 243301111400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283926857280).

243301111400 is an abundant number, since it is smaller than the sum of its proper divisors (324552603160).

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

243301111400 is a wasteful number, since it uses less digits than its factorization.

243301111400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4195 (or 4186 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 243301111400 its reverse (4111103342), we get a palindrome (247412214742).

The spelling of 243301111400 in words is "two hundred forty-three billion, three hundred one million, one hundred eleven thousand, four hundred".