1111111111120 has 40 divisors (see below), whose sum is σ = 2584883333664. Its totient is φ = 444177777792.

The previous prime is 1111111111093. The next prime is 1111111111139. The reversal of 1111111111120 is 211111111111.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 1111111111120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4032474 + ... + 4299193.

Almost surely, 2^{1111111111120} is an apocalyptic number.

1111111111120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111111111120 is an abundant number, since it is smaller than the sum of its proper divisors (1473772222544).

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

1111111111120 is a wasteful number, since it uses less digits than its factorization.

1111111111120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8333347 (or 8333341 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 13.

Adding to 1111111111120 its reverse (211111111111), we get a palindrome (1322222222231).

Subtracting from 1111111111120 its reverse (211111111111), we obtain a palindrome (900000000009).

The spelling of 1111111111120 in words is "one trillion, one hundred eleven billion, one hundred eleven million, one hundred eleven thousand, one hundred twenty".