111331323132120 has 768 divisors, whose sum is σ = 448877388960000. Its totient is φ = 23303013285888.

The previous prime is 111331323132103. The next prime is 111331323132131. The reversal of 111331323132120 is 21231323133111.

111331323132120 is a `hidden beast` number, since 1 + 1 + 1 + 3 + 3 + 132 + 313 + 212 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 2252323566 + ... + 2252372994.

It is an arithmetic number, because the mean of its divisors is an integer number (584475766875).

Almost surely, 2^{111331323132120} is an apocalyptic number.

111331323132120 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 111331323132120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224438694480000).

111331323132120 is an abundant number, since it is smaller than the sum of its proper divisors (337546065827880).

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

111331323132120 is a wasteful number, since it uses less digits than its factorization.

111331323132120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50012 (or 50005 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

Adding to 111331323132120 its reverse (21231323133111), we get a palindrome (132562646265231).

Subtracting from 111331323132120 its reverse (21231323133111), we obtain a palindrome (90099999999009).

The spelling of 111331323132120 in words is "one hundred eleven trillion, three hundred thirty-one billion, three hundred twenty-three million, one hundred thirty-two thousand, one hundred twenty".