243315111120 has 80 divisors (see below), whose sum is σ = 793975640640. Its totient is φ = 61469079552.

The previous prime is 243315111113. The next prime is 243315111121. The reversal of 243315111120 is 21111513342.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243315111121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26674729 + ... + 26683848.

It is an arithmetic number, because the mean of its divisors is an integer number (9924695508).

Almost surely, 2^243315111120 is an apocalyptic number.

243315111120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243315111120 is an abundant number, since it is smaller than the sum of its proper divisors (550660529520).

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

243315111120 is a wasteful number, since it uses less digits than its factorization.

243315111120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53358612 (or 53358606 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

Adding to 243315111120 its reverse (21111513342), we get a palindrome (264426624462).

The spelling of 243315111120 in words is "two hundred forty-three billion, three hundred fifteen million, one hundred eleven thousand, one hundred twenty".