12000231111121 has 16 divisors (see below), whose sum is σ = 14308365961728. Its totient is φ = 9936365241600.

The previous prime is 12000231111013. The next prime is 12000231111139. The reversal of 12000231111121 is 12111113200021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12000231111121 - 2⁷ = 12000231110993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12000231111095 and 12000231111104.

It is not an unprimeable number, because it can be changed into a prime (12000231111721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1035032250 + ... + 1035043843.

It is an arithmetic number, because the mean of its divisors is an integer number (894272872608).

Almost surely, 2^{12000231111121} is an apocalyptic number.

12000231111121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12000231111121 is a deficient number, since it is larger than the sum of its proper divisors (2308134850607).

12000231111121 is a wasteful number, since it uses less digits than its factorization.

12000231111121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2070076152.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 12000231111121 its reverse (12111113200021), we get a palindrome (24111344311142).

The spelling of 12000231111121 in words is "twelve trillion, two hundred thirty-one million, one hundred eleven thousand, one hundred twenty-one".