111420500234120 has 192 divisors, whose sum is σ = 318297319545600. Its totient is φ = 34711028997120.

The previous prime is 111420500234077. The next prime is 111420500234123. The reversal of 111420500234120 is 21432005024111.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 111420500234120.

It is not an unprimeable number, because it can be changed into a prime (111420500234123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 41672561 + ... + 44265599.

It is an arithmetic number, because the mean of its divisors is an integer number (1657798539300).

Almost surely, 2^{111420500234120} is an apocalyptic number.

111420500234120 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 111420500234120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159148659772800).

111420500234120 is an abundant number, since it is smaller than the sum of its proper divisors (206876819311480).

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

111420500234120 is a wasteful number, since it uses less digits than its factorization.

111420500234120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2595068 (or 2595057 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 111420500234120 its reverse (21432005024111), we get a palindrome (132852505258231).

The spelling of 111420500234120 in words is "one hundred eleven trillion, four hundred twenty billion, five hundred million, two hundred thirty-four thousand, one hundred twenty".