11019999 has 8 divisors (see below), whose sum is σ = 14710912. Its totient is φ = 7337880.

The previous prime is 11019989. The next prime is 11020001. The reversal of 11019999 is 99991011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11019999 - 2¹³ = 11011807 is a prime.

It is a Duffinian number.

11019999 is a modest number, since divided by 9999 gives 1101 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11019929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1734 + ... + 5004.

It is an arithmetic number, because the mean of its divisors is an integer number (1838864).

Almost surely, 2^11019999 is an apocalyptic number.

11019999 is a deficient number, since it is larger than the sum of its proper divisors (3690913).

11019999 is a wasteful number, since it uses less digits than its factorization.

11019999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4397.

The product of its (nonzero) digits is 6561, while the sum is 39.

The square root of 11019999 is about 3319.6383839208. The cubic root of 11019999 is about 222.5327073914.

The spelling of 11019999 in words is "eleven million, nineteen thousand, nine hundred ninety-nine".