990001000011011 has 2 divisors, whose sum is σ = 990001000011012. Its totient is φ = 990001000011010.

The previous prime is 990001000010993. The next prime is 990001000011013. The reversal of 990001000011011 is 110110000100099.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 990001000011011 - 2⁶ = 990001000010947 is a prime.

Together with 990001000011013, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (990001000011013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 495000500005505 + 495000500005506.

It is an arithmetic number, because the mean of its divisors is an integer number (495000500005506).

Almost surely, 2^{990001000011011} is an apocalyptic number.

990001000011011 is a deficient number, since it is larger than the sum of its proper divisors (1).

990001000011011 is an equidigital number, since it uses as much as digits as its factorization.

990001000011011 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 990001000011011 in words is "nine hundred ninety trillion, one billion, eleven thousand, eleven".