12003103123111 has 2 divisors, whose sum is σ = 12003103123112. Its totient is φ = 12003103123110.

The previous prime is 12003103123087. The next prime is 12003103123133. The reversal of 12003103123111 is 11132130130021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12003103123111 - 2²³ = 12003094734503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12003103121111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6001551561555 + 6001551561556.

It is an arithmetic number, because the mean of its divisors is an integer number (6001551561556).

Almost surely, 2^{12003103123111} is an apocalyptic number.

12003103123111 is a deficient number, since it is larger than the sum of its proper divisors (1).

12003103123111 is an equidigital number, since it uses as much as digits as its factorization.

12003103123111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 12003103123111 its reverse (11132130130021), we get a palindrome (23135233253132).

The spelling of 12003103123111 in words is "twelve trillion, three billion, one hundred three million, one hundred twenty-three thousand, one hundred eleven".