1111111132120 has 256 divisors, whose sum is σ = 2931595390080. Its totient is φ = 374508748800.

The previous prime is 1111111132097. The next prime is 1111111132123. The reversal of 1111111132120 is 212311111111.

It is a junction number, because it is equal to n+sod(n) for n = 1111111132094 and 1111111132103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111111132123) 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, 557505844 + ... + 557507836.

Almost surely, 2^{1111111132120} is an apocalyptic number.

1111111132120 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 1111111132120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1465797695040).

1111111132120 is an abundant number, since it is smaller than the sum of its proper divisors (1820484257960).

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

1111111132120 is a wasteful number, since it uses less digits than its factorization.

1111111132120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3126 (or 3122 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 16.

Adding to 1111111132120 its reverse (212311111111), we get a palindrome (1323422243231).

The spelling of 1111111132120 in words is "one trillion, one hundred eleven billion, one hundred eleven million, one hundred thirty-two thousand, one hundred twenty".