11020009 has 32 divisors (see below), whose sum is σ = 15079680. Its totient is φ = 7776000.

The previous prime is 11020003. The next prime is 11020039. The reversal of 11020009 is 90002011.

11020009 = 302² + 303² + ... + 392².

It is a cyclic number.

It is not a de Polignac number, because 11020009 - 2³ = 11020001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (11020001) 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 in 31 ways as a sum of consecutive naturals, for example, 101047 + ... + 101155.

It is an arithmetic number, because the mean of its divisors is an integer number (471240).

Almost surely, 2^11020009 is an apocalyptic number.

It is an amenable number.

11020009 is a deficient number, since it is larger than the sum of its proper divisors (4059671).

11020009 is a wasteful number, since it uses less digits than its factorization.

11020009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 11020009 is about 3319.6398901086. The cubic root of 11020009 is about 222.5327747032.

The spelling of 11020009 in words is "eleven million, twenty thousand, nine".