11155241311 has 4 divisors (see below), whose sum is σ = 11211298000. Its totient is φ = 11099184624.

The previous prime is 11155241309. The next prime is 11155241329. The reversal of 11155241311 is 11314255111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11155241311 - 2¹ = 11155241309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11155241341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28028046 + ... + 28028443.

It is an arithmetic number, because the mean of its divisors is an integer number (2802824500).

Almost surely, 2^11155241311 is an apocalyptic number.

11155241311 is a deficient number, since it is larger than the sum of its proper divisors (56056689).

11155241311 is an equidigital number, since it uses as much as digits as its factorization.

11155241311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56056688.

The product of its digits is 600, while the sum is 25.

Adding to 11155241311 its reverse (11314255111), we get a palindrome (22469496422).

The spelling of 11155241311 in words is "eleven billion, one hundred fifty-five million, two hundred forty-one thousand, three hundred eleven".