12110111121234 has 64 divisors (see below), whose sum is σ = 27808479691776. Its totient is φ = 3444010434624.

The previous prime is 12110111121217. The next prime is 12110111121289. The reversal of 12110111121234 is 43212111101121.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 12110111121234.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42694909 + ... + 42977615.

It is an arithmetic number, because the mean of its divisors is an integer number (434507495184).

Almost surely, 2^{12110111121234} is an apocalyptic number.

12110111121234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12110111121234 is an abundant number, since it is smaller than the sum of its proper divisors (15698368570542).

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

12110111121234 is a wasteful number, since it uses less digits than its factorization.

12110111121234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287439.

The product of its (nonzero) digits is 96, while the sum is 21.

Adding to 12110111121234 its reverse (43212111101121), we get a palindrome (55322222222355).

The spelling of 12110111121234 in words is "twelve trillion, one hundred ten billion, one hundred eleven million, one hundred twenty-one thousand, two hundred thirty-four".