1101110111987 has 4 divisors (see below), whose sum is σ = 1101140085696. Its totient is φ = 1101080138280.

The previous prime is 1101110111963. The next prime is 1101110111989. The reversal of 1101110111987 is 7891110111011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1101110111987 - 2²² = 1101105917683 is a prime.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 14931683 + ... + 15005244.

It is an arithmetic number, because the mean of its divisors is an integer number (275285021424).

Almost surely, 2^{1101110111987} is an apocalyptic number.

1101110111987 is a deficient number, since it is larger than the sum of its proper divisors (29973709).

1101110111987 is an equidigital number, since it uses as much as digits as its factorization.

1101110111987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29973708.

The product of its (nonzero) digits is 504, while the sum is 32.

Adding to 1101110111987 its reverse (7891110111011), we get a palindrome (8992220222998).

The spelling of 1101110111987 in words is "one trillion, one hundred one billion, one hundred ten million, one hundred eleven thousand, nine hundred eighty-seven".