12030343123111 has 4 divisors (see below), whose sum is σ = 12553401519792. Its totient is φ = 11507284726432.

The previous prime is 12030343123079. The next prime is 12030343123151. The reversal of 12030343123111 is 11132134303021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12030343123111 - 2⁵ = 12030343123079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12030343123151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261529198306 + ... + 261529198351.

It is an arithmetic number, because the mean of its divisors is an integer number (3138350379948).

Almost surely, 2^{12030343123111} is an apocalyptic number.

12030343123111 is a deficient number, since it is larger than the sum of its proper divisors (523058396681).

12030343123111 is an equidigital number, since it uses as much as digits as its factorization.

12030343123111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523058396680.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 12030343123111 its reverse (11132134303021), we get a palindrome (23162477426132).

The spelling of 12030343123111 in words is "twelve trillion, thirty billion, three hundred forty-three million, one hundred twenty-three thousand, one hundred eleven".