11198811 has 8 divisors (see below), whose sum is σ = 16080400. Its totient is φ = 6891552.

The previous prime is 11198749. The next prime is 11198819. The reversal of 11198811 is 11889111.

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

It is not a de Polignac number, because 11198811 - 2¹⁴ = 11182427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11198819) 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, 143536 + ... + 143613.

It is an arithmetic number, because the mean of its divisors is an integer number (2010050).

Almost surely, 2^11198811 is an apocalyptic number.

11198811 is a deficient number, since it is larger than the sum of its proper divisors (4881589).

11198811 is a wasteful number, since it uses less digits than its factorization.

11198811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287165.

The product of its digits is 576, while the sum is 30.

The square root of 11198811 is about 3346.4624605694. The cubic root of 11198811 is about 223.7298707483.

The spelling of 11198811 in words is "eleven million, one hundred ninety-eight thousand, eight hundred eleven".