111232141218 has 128 divisors (see below), whose sum is σ = 284029286400. Its totient is φ = 31912056000.

The previous prime is 111232141217. The next prime is 111232141231. The reversal of 111232141218 is 812141232111.

111232141218 is a `hidden beast` number, since 1 + 1 + 1 + 232 + 1 + 412 + 18 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 111232141191 and 111232141200.

It is not an unprimeable number, because it can be changed into a prime (111232141217) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 30052768 + ... + 30056468.

It is an arithmetic number, because the mean of its divisors is an integer number (2218978800).

Almost surely, 2^111232141218 is an apocalyptic number.

111232141218 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 111232141218, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142014643200).

111232141218 is an abundant number, since it is smaller than the sum of its proper divisors (172797145182).

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

111232141218 is a wasteful number, since it uses less digits than its factorization.

111232141218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6405 (or 6399 counting only the distinct ones).

The product of its digits is 768, while the sum is 27.

Adding to 111232141218 its reverse (812141232111), we get a palindrome (923373373329).

The spelling of 111232141218 in words is "one hundred eleven billion, two hundred thirty-two million, one hundred forty-one thousand, two hundred eighteen".