12111320311110 has 32 divisors (see below), whose sum is σ = 32296854163680. Its totient is φ = 3229685416224.

The previous prime is 12111320311087. The next prime is 12111320311127. The reversal of 12111320311110 is 1111302311121.

12111320311110 is a `hidden beast` number, since 1 + 21 + 1 + 1 + 320 + 311 + 1 + 10 = 666.

12111320311110 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22428370677 + ... + 22428371216.

It is an arithmetic number, because the mean of its divisors is an integer number (1009276692615).

Almost surely, 2^{12111320311110} is an apocalyptic number.

12111320311110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12111320311110 is an abundant number, since it is smaller than the sum of its proper divisors (20185533852570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12111320311110 is a wasteful number, since it uses less digits than its factorization.

12111320311110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44856741909 (or 44856741903 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

Adding to 12111320311110 its reverse (1111302311121), we get a palindrome (13222622622231).

The spelling of 12111320311110 in words is "twelve trillion, one hundred eleven billion, three hundred twenty million, three hundred eleven thousand, one hundred ten".