11099999 has 2 divisors, whose sum is σ = 11100000. Its totient is φ = 11099998.

The previous prime is 11099993. The next prime is 11100013. The reversal of 11099999 is 99999011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11099999 - 2⁴ = 11099983 is a prime.

11099999 is a modest number, since divided by 9999 gives 1109 as remainder.

It is a zygodrome in base 4.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11099993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5549999 + 5550000.

It is an arithmetic number, because the mean of its divisors is an integer number (5550000).

Almost surely, 2^11099999 is an apocalyptic number.

11099999 is a deficient number, since it is larger than the sum of its proper divisors (1).

11099999 is an equidigital number, since it uses as much as digits as its factorization.

11099999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 59049, while the sum is 47.

The square root of 11099999 is about 3331.6660997165. Note that the first 3 decimals coincide. The cubic root of 11099999 is about 223.0699037488.

It can be divided in two parts, 110999 and 99, that multiplied together give a palindrome (10988901).

The spelling of 11099999 in words is "eleven million, ninety-nine thousand, nine hundred ninety-nine".