111120343124 has 48 divisors (see below), whose sum is σ = 235620443520. Its totient is φ = 44763217920.

The previous prime is 111120343123. The next prime is 111120343133. The reversal of 111120343124 is 421343021111.

It is a self number, because there is not a number n which added to its sum of digits gives 111120343124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111120343123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214259 + ... + 517829.

It is an arithmetic number, because the mean of its divisors is an integer number (4908759240).

Almost surely, 2^111120343124 is an apocalyptic number.

111120343124 is a gapful number since it is divisible by the number (14) 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 111120343124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117810221760).

111120343124 is an abundant number, since it is smaller than the sum of its proper divisors (124500100396).

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

111120343124 is a wasteful number, since it uses less digits than its factorization.

111120343124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304368 (or 304366 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 111120343124 its reverse (421343021111), we get a palindrome (532463364235).

The spelling of 111120343124 in words is "one hundred eleven billion, one hundred twenty million, three hundred forty-three thousand, one hundred twenty-four".