112121211113 has 2 divisors, whose sum is σ = 112121211114. Its totient is φ = 112121211112.

The previous prime is 112121210959. The next prime is 112121211151. The reversal of 112121211113 is 311112121211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98978193664 + 13143017449 = 314608^2 + 114643^2 .

It is a cyclic number.

It is not a de Polignac number, because 112121211113 - 2²⁶ = 112054102249 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 112121211091 and 112121211100.

It is not a weakly prime, because it can be changed into another prime (112121211173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56060605556 + 56060605557.

It is an arithmetic number, because the mean of its divisors is an integer number (56060605557).

Almost surely, 2^112121211113 is an apocalyptic number.

It is an amenable number.

112121211113 is a deficient number, since it is larger than the sum of its proper divisors (1).

112121211113 is an equidigital number, since it uses as much as digits as its factorization.

112121211113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24, while the sum is 17.

Adding to 112121211113 its reverse (311112121211), we get a palindrome (423233332324).

The spelling of 112121211113 in words is "one hundred twelve billion, one hundred twenty-one million, two hundred eleven thousand, one hundred thirteen".