100100099987 has 2 divisors, whose sum is σ = 100100099988. Its totient is φ = 100100099986.

The previous prime is 100100099977. The next prime is 100100100011. The reversal of 100100099987 is 789990001001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100100099987 - 2⁶ = 100100099923 is a prime.

It is not a weakly prime, because it can be changed into another prime (100100099977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50050049993 + 50050049994.

It is an arithmetic number, because the mean of its divisors is an integer number (50050049994).

Almost surely, 2^100100099987 is an apocalyptic number.

100100099987 is a deficient number, since it is larger than the sum of its proper divisors (1).

100100099987 is an equidigital number, since it uses as much as digits as its factorization.

100100099987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 44.

The spelling of 100100099987 in words is "one hundred billion, one hundred million, ninety-nine thousand, nine hundred eighty-seven".