1101101100120 has 384 divisors, whose sum is σ = 4309808256000. Its totient is φ = 238170792960.

The previous prime is 1101101100119. The next prime is 1101101100157. The reversal of 1101101100120 is 210011011011.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 45042861 + ... + 45067299.

It is an arithmetic number, because the mean of its divisors is an integer number (11223459000).

Almost surely, 2^{1101101100120} is an apocalyptic number.

1101101100120 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 1101101100120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2154904128000).

1101101100120 is an abundant number, since it is smaller than the sum of its proper divisors (3208707155880).

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

1101101100120 is a wasteful number, since it uses less digits than its factorization.

1101101100120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25423 (or 25416 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 1101101100120 its reverse (210011011011), we get a palindrome (1311112111131).

The spelling of 1101101100120 in words is "one trillion, one hundred one billion, one hundred one million, one hundred thousand, one hundred twenty".