111343220240 has 40 divisors (see below), whose sum is σ = 295854843840. Its totient is φ = 38174818176.

The previous prime is 111343220239. The next prime is 111343220269. The reversal of 111343220240 is 42022343111.

It is a tau number, because it is divible by the number of its divisors (40).

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 7 ways as a sum of consecutive naturals, for example, 99413030 + ... + 99414149.

It is an arithmetic number, because the mean of its divisors is an integer number (7396371096).

Almost surely, 2^111343220240 is an apocalyptic number.

111343220240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111343220240 is an abundant number, since it is smaller than the sum of its proper divisors (184511623600).

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

111343220240 is a wasteful number, since it uses less digits than its factorization.

111343220240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198827199 (or 198827193 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 111343220240 its reverse (42022343111), we get a palindrome (153365563351).

The spelling of 111343220240 in words is "one hundred eleven billion, three hundred forty-three million, two hundred twenty thousand, two hundred forty".