111434351424 has 112 divisors (see below), whose sum is σ = 324096132096. Its totient is φ = 33510131200.

The previous prime is 111434351417. The next prime is 111434351429. The reversal of 111434351424 is 424153434111.

It is a super-2 number, since 2×111434351424² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111434351429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75289 + ... + 478055.

Almost surely, 2^111434351424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111434351424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162048066048).

111434351424 is an abundant number, since it is smaller than the sum of its proper divisors (212661780672).

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

111434351424 is a wasteful number, since it uses less digits than its factorization.

111434351424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402924 (or 402914 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

Adding to 111434351424 its reverse (424153434111), we get a palindrome (535587785535).

The spelling of 111434351424 in words is "one hundred eleven billion, four hundred thirty-four million, three hundred fifty-one thousand, four hundred twenty-four".