11123655 has 16 divisors (see below), whose sum is σ = 18091104. Its totient is φ = 5834880.

The previous prime is 11123647. The next prime is 11123657. The reversal of 11123655 is 55632111.

It is not a de Polignac number, because 11123655 - 2³ = 11123647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11123657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5164 + ... + 6993.

It is an arithmetic number, because the mean of its divisors is an integer number (1130694).

Almost surely, 2^11123655 is an apocalyptic number.

11123655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11123655 is a deficient number, since it is larger than the sum of its proper divisors (6967449).

11123655 is a wasteful number, since it uses less digits than its factorization.

11123655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12226.

The product of its digits is 900, while the sum is 24.

The square root of 11123655 is about 3335.2143859128. The cubic root of 11123655 is about 223.2282580389.

Adding to 11123655 its reverse (55632111), we get a palindrome (66755766).

The spelling of 11123655 in words is "eleven million, one hundred twenty-three thousand, six hundred fifty-five".