100000010019987 has 24 divisors (see below), whose sum is σ = 180086598132480. Its totient is φ = 51948057152880.

The previous prime is 100000010019971. The next prime is 100000010019997. The reversal of 100000010019987 is 789910010000001.

It is not a de Polignac number, because 100000010019987 - 2⁴ = 100000010019971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100000010019997) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72150078687 + ... + 72150080072.

It is an arithmetic number, because the mean of its divisors is an integer number (7503608255520).

Almost surely, 2^{100000010019987} is an apocalyptic number.

100000010019987 is a deficient number, since it is larger than the sum of its proper divisors (80086588112493).

100000010019987 is a wasteful number, since it uses less digits than its factorization.

100000010019987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144300158783 (or 144300158780 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 36.

Adding to 100000010019987 its reverse (789910010000001), we get a palindrome (889910020019988).

The spelling of 100000010019987 in words is "one hundred trillion, ten million, nineteen thousand, nine hundred eighty-seven".