1099899011 has 2 divisors, whose sum is σ = 1099899012. Its totient is φ = 1099899010.

The previous prime is 1099899007. The next prime is 1099899013. The reversal of 1099899011 is 1109989901.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1099899011 - 2² = 1099899007 is a prime.

It is a Sophie Germain prime.

Together with 1099899013, 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 (1099899013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549949505 + 549949506.

It is an arithmetic number, because the mean of its divisors is an integer number (549949506).

Almost surely, 2^1099899011 is an apocalyptic number.

1099899011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1099899011 is an equidigital number, since it uses as much as digits as its factorization.

1099899011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52488, while the sum is 47.

The square root of 1099899011 is about 33164.7254021498. The cubic root of 1099899011 is about 1032.2485239027.

The spelling of 1099899011 in words is "one billion, ninety-nine million, eight hundred ninety-nine thousand, eleven".