111432311430 has 128 divisors (see below), whose sum is σ = 293043225600. Its totient is φ = 26894499840.

The previous prime is 111432311423. The next prime is 111432311437. The reversal of 111432311430 is 34113234111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (111432311423) and next prime (111432311437).

It is a self number, because there is not a number n which added to its sum of digits gives 111432311430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111432311437) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 114055102 + ... + 114056078.

It is an arithmetic number, because the mean of its divisors is an integer number (2289400200).

Almost surely, 2^111432311430 is an apocalyptic number.

111432311430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 111432311430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146521612800).

111432311430 is an abundant number, since it is smaller than the sum of its proper divisors (181610914170).

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

111432311430 is a wasteful number, since it uses less digits than its factorization.

111432311430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2174.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 111432311430 its reverse (34113234111), we get a palindrome (145545545541).

The spelling of 111432311430 in words is "one hundred eleven billion, four hundred thirty-two million, three hundred eleven thousand, four hundred thirty".