100001110987 has 4 divisors (see below), whose sum is σ = 100041980256. Its totient is φ = 99960241720.

The previous prime is 100001110969. The next prime is 100001111027. The reversal of 100001110987 is 789011100001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100001110987 is a prime.

It is a super-2 number, since 2×100001110987² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100001110687) 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, 20430964 + ... + 20435857.

It is an arithmetic number, because the mean of its divisors is an integer number (25010495064).

Almost surely, 2^100001110987 is an apocalyptic number.

100001110987 is a deficient number, since it is larger than the sum of its proper divisors (40869269).

100001110987 is an equidigital number, since it uses as much as digits as its factorization.

100001110987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40869268.

The product of its (nonzero) digits is 504, while the sum is 28.

Adding to 100001110987 its reverse (789011100001), we get a palindrome (889012210988).

The spelling of 100001110987 in words is "one hundred billion, one million, one hundred ten thousand, nine hundred eighty-seven".