11311055 has 16 divisors (see below), whose sum is σ = 16187904. Its totient is φ = 7418400.

The previous prime is 11311051. The next prime is 11311087. The reversal of 11311055 is 55011311.

It is not a de Polignac number, because 11311055 - 2² = 11311051 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11311051) 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, 6221 + ... + 7830.

It is an arithmetic number, because the mean of its divisors is an integer number (1011744).

Almost surely, 2^11311055 is an apocalyptic number.

11311055 is a deficient number, since it is larger than the sum of its proper divisors (4876849).

11311055 is a wasteful number, since it uses less digits than its factorization.

11311055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14086.

The product of its (nonzero) digits is 75, while the sum is 17.

The square root of 11311055 is about 3363.1911929000. The cubic root of 11311055 is about 224.4748575934.

Adding to 11311055 its reverse (55011311), we get a palindrome (66322366).

The spelling of 11311055 in words is "eleven million, three hundred eleven thousand, fifty-five".