111100010099987 has 2 divisors, whose sum is σ = 111100010099988. Its totient is φ = 111100010099986.

The previous prime is 111100010099983. The next prime is 111100010100007. The reversal of 111100010099987 is 789990010001111.

It is a weak prime.

It is an emirp because it is prime and its reverse (789990010001111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111100010099987 - 2² = 111100010099983 is a prime.

It is not a weakly prime, because it can be changed into another prime (111100010099983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55550005049993 + 55550005049994.

It is an arithmetic number, because the mean of its divisors is an integer number (55550005049994).

Almost surely, 2^{111100010099987} is an apocalyptic number.

111100010099987 is a deficient number, since it is larger than the sum of its proper divisors (1).

111100010099987 is an equidigital number, since it uses as much as digits as its factorization.

111100010099987 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 47.

The spelling of 111100010099987 in words is "one hundred eleven trillion, one hundred billion, ten million, ninety-nine thousand, nine hundred eighty-seven".