11120111111 has 8 divisors (see below), whose sum is σ = 11775156624. Its totient is φ = 10465168000.

The previous prime is 11120111099. The next prime is 11120111117. The reversal of 11120111111 is 11111102111.

It is a happy number.

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-11120111111 is a prime.

It is a super-2 number, since 2×11120111111² (a number of 21 digits) contains 22 as substring.

11120111111 is a modest number, since divided by 111111 gives 11120 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 11120111092 and 11120111101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11120111117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 406361 + ... + 432861.

It is an arithmetic number, because the mean of its divisors is an integer number (1471894578).

Almost surely, 2^11120111111 is an apocalyptic number.

11120111111 is a deficient number, since it is larger than the sum of its proper divisors (655045513).

11120111111 is a wasteful number, since it uses less digits than its factorization.

11120111111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51201.

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 11120111111 its reverse (11111102111), we get a palindrome (22231213222).

The spelling of 11120111111 in words is "eleven billion, one hundred twenty million, one hundred eleven thousand, one hundred eleven".