111232203120 has 240 divisors, whose sum is σ = 403844881440. Its totient is φ = 27341162496.

The previous prime is 111232203031. The next prime is 111232203167. The reversal of 111232203120 is 21302232111.

111232203120 is a `hidden beast` number, since 11 + 123 + 220 + 312 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 111232203093 and 111232203102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 396282 + ... + 616038.

It is an arithmetic number, because the mean of its divisors is an integer number (1682687006).

Almost surely, 2^111232203120 is an apocalyptic number.

111232203120 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 111232203120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201922440720).

111232203120 is an abundant number, since it is smaller than the sum of its proper divisors (292612678320).

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

111232203120 is a wasteful number, since it uses less digits than its factorization.

111232203120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219832 (or 219823 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 111232203120 its reverse (21302232111), we get a palindrome (132534435231).

The spelling of 111232203120 in words is "one hundred eleven billion, two hundred thirty-two million, two hundred three thousand, one hundred twenty".