100111001099 has 2 divisors, whose sum is σ = 100111001100. Its totient is φ = 100111001098.

The previous prime is 100111001087. The next prime is 100111001167. The reversal of 100111001099 is 990100111001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100111001099 - 2¹⁶ = 100110935563 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (100111001009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50055500549 + 50055500550.

It is an arithmetic number, because the mean of its divisors is an integer number (50055500550).

Almost surely, 2^100111001099 is an apocalyptic number.

100111001099 is a deficient number, since it is larger than the sum of its proper divisors (1).

100111001099 is an equidigital number, since it uses as much as digits as its factorization.

100111001099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81, while the sum is 23.

The spelling of 100111001099 in words is "one hundred billion, one hundred eleven million, one thousand, ninety-nine".