1101110111988 has 24 divisors (see below), whose sum is σ = 2569277702208. Its totient is φ = 367033736256.

The previous prime is 1101110111963. The next prime is 1101110111989. The reversal of 1101110111988 is 8891110111011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101110111989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1589320 + ... + 2174432.

It is an arithmetic number, because the mean of its divisors is an integer number (107053237592).

Almost surely, 2^{1101110111988} is an apocalyptic number.

It is an amenable number.

1101110111988 is an abundant number, since it is smaller than the sum of its proper divisors (1468167590220).

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

1101110111988 is a wasteful number, since it uses less digits than its factorization.

1101110111988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741943 (or 741941 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 33.

Adding to 1101110111988 its reverse (8891110111011), we get a palindrome (9992220222999).

The spelling of 1101110111988 in words is "one trillion, one hundred one billion, one hundred ten million, one hundred eleven thousand, nine hundred eighty-eight".