111120343533440 has 128 divisors (see below), whose sum is σ = 268863130569600. Its totient is φ = 43910087288832.

The previous prime is 111120343533439. The next prime is 111120343533461. The reversal of 111120343533440 is 44335343021111.

It is a tau number, because it is divible by the number of its divisors (128).

It is a self number, because there is not a number n which added to its sum of digits gives 111120343533440.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1116479519 + ... + 1116579041.

It is an arithmetic number, because the mean of its divisors is an integer number (2100493207575).

Almost surely, 2^{111120343533440} is an apocalyptic number.

111120343533440 is a gapful number since it is divisible by the number (10) 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 111120343533440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134431565284800).

111120343533440 is an abundant number, since it is smaller than the sum of its proper divisors (157742787036160).

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

111120343533440 is an equidigital number, since it uses as much as digits as its factorization.

111120343533440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120644 (or 120632 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 111120343533440 its reverse (44335343021111), we get a palindrome (155455686554551).

The spelling of 111120343533440 in words is "one hundred eleven trillion, one hundred twenty billion, three hundred forty-three million, five hundred thirty-three thousand, four hundred forty".