12111123131141 has 16 divisors (see below), whose sum is σ = 12916373333808. Its totient is φ = 11338900992000.

The previous prime is 12111123131119. The next prime is 12111123131171. The reversal of 12111123131141 is 14113132111121.

It can be written as a sum of positive squares in 8 ways, for example, as 724109094916 + 11387014036225 = 850946^2 + 3374465^2 .

It is a cyclic number.

It is not a de Polignac number, because 12111123131141 - 2²⁶ = 12111056022277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111123131111) 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, 54571460 + ... + 54792941.

It is an arithmetic number, because the mean of its divisors is an integer number (807273333363).

Almost surely, 2^{12111123131141} is an apocalyptic number.

It is an amenable number.

12111123131141 is a deficient number, since it is larger than the sum of its proper divisors (805250202667).

12111123131141 is a wasteful number, since it uses less digits than its factorization.

12111123131141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109364552.

The product of its digits is 144, while the sum is 23.

Adding to 12111123131141 its reverse (14113132111121), we get a palindrome (26224255242262).

The spelling of 12111123131141 in words is "twelve trillion, one hundred eleven billion, one hundred twenty-three million, one hundred thirty-one thousand, one hundred forty-one".