999000011 has 2 divisors, whose sum is σ = 999000012. Its totient is φ = 999000010.

The previous prime is 998999999. The next prime is 999000029. The reversal of 999000011 is 110000999.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-999000011 is a prime.

It is a Chen prime.

It is a zygodrome in base 10.

It is not a weakly prime, because it can be changed into another prime (999000061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499500005 + 499500006.

It is an arithmetic number, because the mean of its divisors is an integer number (499500006).

Almost surely, 2^999000011 is an apocalyptic number.

999000011 is a deficient number, since it is larger than the sum of its proper divisors (1).

999000011 is an equidigital number, since it uses as much as digits as its factorization.

999000011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 729, while the sum is 29.

The square root of 999000011 is about 31606.9614325705. The cubic root of 999000011 is about 999.6665591629. Note that the first 3 decimals are identical.

The spelling of 999000011 in words is "nine hundred ninety-nine million, eleven", and thus it is an aban number.