11133122111 has 8 divisors (see below), whose sum is σ = 11200556784. Its totient is φ = 11065723200.

The previous prime is 11133122089. The next prime is 11133122113. The reversal of 11133122111 is 11122133111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11133122111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11133122111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11133122113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 877211 + ... + 889811.

It is an arithmetic number, because the mean of its divisors is an integer number (1400069598).

Almost surely, 2^11133122111 is an apocalyptic number.

11133122111 is a deficient number, since it is larger than the sum of its proper divisors (67434673).

11133122111 is a wasteful number, since it uses less digits than its factorization.

11133122111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17881.

The product of its digits is 36, while the sum is 17.

Adding to 11133122111 its reverse (11122133111), we get a palindrome (22255255222).

The spelling of 11133122111 in words is "eleven billion, one hundred thirty-three million, one hundred twenty-two thousand, one hundred eleven".