1101111112120 has 32 divisors (see below), whose sum is σ = 2477546669520. Its totient is φ = 440436148480.

The previous prime is 1101111112091. The next prime is 1101111112169. The reversal of 1101111112120 is 212111111011.

It is a self number, because there is not a number n which added to its sum of digits gives 1101111112120.

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, 2172399 + ... + 2630881.

Almost surely, 2^{1101111112120} is an apocalyptic number.

1101111112120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1101111112120 is an abundant number, since it is smaller than the sum of its proper divisors (1376435557400).

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

1101111112120 is a wasteful number, since it uses less digits than its factorization.

1101111112120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518535 (or 518531 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 1101111112120 its reverse (212111111011), we get a palindrome (1313222223131).

The spelling of 1101111112120 in words is "one trillion, one hundred one billion, one hundred eleven million, one hundred twelve thousand, one hundred twenty".