12111210113 has 2 divisors, whose sum is σ = 12111210114. Its totient is φ = 12111210112.

The previous prime is 12111210079. The next prime is 12111210121. The reversal of 12111210113 is 31101211121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8452411969 + 3658798144 = 91937^2 + 60488^2 .

It is a cyclic number.

It is not a de Polignac number, because 12111210113 - 2⁸ = 12111209857 is a prime.

It is not a weakly prime, because it can be changed into another prime (12111210613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6055605056 + 6055605057.

It is an arithmetic number, because the mean of its divisors is an integer number (6055605057).

Almost surely, 2^12111210113 is an apocalyptic number.

It is an amenable number.

12111210113 is a deficient number, since it is larger than the sum of its proper divisors (1).

12111210113 is an equidigital number, since it uses as much as digits as its factorization.

12111210113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 12111210113 its reverse (31101211121), we get a palindrome (43212421234).

The spelling of 12111210113 in words is "twelve billion, one hundred eleven million, two hundred ten thousand, one hundred thirteen".