10000999111 has 2 divisors, whose sum is σ = 10000999112. Its totient is φ = 10000999110.

The previous prime is 10000999109. The next prime is 10000999117. The reversal of 10000999111 is 11199900001.

It is a weak prime.

It is an emirp because it is prime and its reverse (11199900001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10000999111 - 2¹ = 10000999109 is a prime.

Together with 10000999109, 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 (10000999117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000499555 + 5000499556.

It is an arithmetic number, because the mean of its divisors is an integer number (5000499556).

Almost surely, 2^10000999111 is an apocalyptic number.

10000999111 is a deficient number, since it is larger than the sum of its proper divisors (1).

10000999111 is an equidigital number, since it uses as much as digits as its factorization.

10000999111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 729, while the sum is 31.

The spelling of 10000999111 in words is "ten billion, nine hundred ninety-nine thousand, one hundred eleven".