12110111111 has 8 divisors (see below), whose sum is σ = 14568554880. Its totient is φ = 9833774328.

The previous prime is 12110111107. The next prime is 12110111141. The reversal of 12110111111 is 11111101121.

It is a happy number.

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

It is not a de Polignac number, because 12110111111 - 2² = 12110111107 is a prime.

It is a super-2 number, since 2×12110111111² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

12110111111 is a modest number, since divided by 111111 gives 12110 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 12110111092 and 12110111101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12110111141) 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, 45526601 + ... + 45526866.

It is an arithmetic number, because the mean of its divisors is an integer number (1821069360).

Almost surely, 2^12110111111 is an apocalyptic number.

12110111111 is a deficient number, since it is larger than the sum of its proper divisors (2458443769).

12110111111 is an equidigital number, since it uses as much as digits as its factorization.

12110111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91053493.

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

Adding to 12110111111 its reverse (11111101121), we get a palindrome (23221212232).

The spelling of 12110111111 in words is "twelve billion, one hundred ten million, one hundred eleven thousand, one hundred eleven".