11131211011 has 8 divisors (see below), whose sum is σ = 11147207904. Its totient is φ = 11115228480.

The previous prime is 11131210999. The next prime is 11131211029. The reversal of 11131211011 is 11011213111.

11131211011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11131211011 - 2²⁷ = 10996993283 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11131210982 and 11131211000.

It is not an unprimeable number, because it can be changed into a prime (11131211411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3096231 + ... + 3099823.

It is an arithmetic number, because the mean of its divisors is an integer number (1393400988).

Almost surely, 2^11131211011 is an apocalyptic number.

11131211011 is a deficient number, since it is larger than the sum of its proper divisors (15996893).

11131211011 is a wasteful number, since it uses less digits than its factorization.

11131211011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7181.

The product of its (nonzero) digits is 6, while the sum is 13.

Adding to 11131211011 its reverse (11011213111), we get a palindrome (22142424122).

The spelling of 11131211011 in words is "eleven billion, one hundred thirty-one million, two hundred eleven thousand, eleven".