1000001099959 has 2 divisors, whose sum is σ = 1000001099960. Its totient is φ = 1000001099958.

The previous prime is 1000001099957. The next prime is 1000001100047. The reversal of 1000001099959 is 9599901000001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1000001099959 - 2¹ = 1000001099957 is a prime.

Together with 1000001099957, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000001099957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500000549979 + 500000549980.

It is an arithmetic number, because the mean of its divisors is an integer number (500000549980).

Almost surely, 2^{1000001099959} is an apocalyptic number.

1000001099959 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000001099959 is an equidigital number, since it uses as much as digits as its factorization.

1000001099959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32805, while the sum is 43.

The spelling of 1000001099959 in words is "one trillion, one million, ninety-nine thousand, nine hundred fifty-nine".