12012103112311 has 2 divisors, whose sum is σ = 12012103112312. Its totient is φ = 12012103112310.

The previous prime is 12012103112281. The next prime is 12012103112329. The reversal of 12012103112311 is 11321130121021.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12012103112311 is a prime.

It is a super-2 number, since 2×12012103112311² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12012103112341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6006051556155 + 6006051556156.

It is an arithmetic number, because the mean of its divisors is an integer number (6006051556156).

Almost surely, 2^{12012103112311} is an apocalyptic number.

12012103112311 is a deficient number, since it is larger than the sum of its proper divisors (1).

12012103112311 is an equidigital number, since it uses as much as digits as its factorization.

12012103112311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 12012103112311 its reverse (11321130121021), we get a palindrome (23333233233332).

The spelling of 12012103112311 in words is "twelve trillion, twelve billion, one hundred three million, one hundred twelve thousand, three hundred eleven".