11131109 has 16 divisors (see below), whose sum is σ = 12602304. Its totient is φ = 9744000.

The previous prime is 11131079. The next prime is 11131111. The reversal of 11131109 is 90113111.

It is a cyclic number.

It is not a de Polignac number, because 11131109 - 2¹⁶ = 11065573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11131409) 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 15 ways as a sum of consecutive naturals, for example, 47657 + ... + 47889.

It is an arithmetic number, because the mean of its divisors is an integer number (787644).

Almost surely, 2^11131109 is an apocalyptic number.

It is an amenable number.

11131109 is a deficient number, since it is larger than the sum of its proper divisors (1471195).

11131109 is a wasteful number, since it uses less digits than its factorization.

11131109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388.

The product of its (nonzero) digits is 27, while the sum is 17.

The square root of 11131109 is about 3336.3316681649. The cubic root of 11131109 is about 223.2781089168.

It can be divided in two parts, 1113 and 1109, that added together give a palindrome (2222).

The spelling of 11131109 in words is "eleven million, one hundred thirty-one thousand, one hundred nine".