111110111212013 has 2 divisors, whose sum is σ = 111110111212014. Its totient is φ = 111110111212012.

The previous prime is 111110111211961. The next prime is 111110111212069. The reversal of 111110111212013 is 310212111011111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103663308784324 + 7446802427689 = 10181518^2 + 2728883^2 .

It is a cyclic number.

It is not a de Polignac number, because 111110111212013 - 2²⁴ = 111110094434797 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111110111211982 and 111110111212000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111110111217013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55555055606006 + 55555055606007.

It is an arithmetic number, because the mean of its divisors is an integer number (55555055606007).

Almost surely, 2^{111110111212013} is an apocalyptic number.

It is an amenable number.

111110111212013 is a deficient number, since it is larger than the sum of its proper divisors (1).

111110111212013 is an equidigital number, since it uses as much as digits as its factorization.

111110111212013 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 17.

Adding to 111110111212013 its reverse (310212111011111), we get a palindrome (421322222223124).

The spelling of 111110111212013 in words is "one hundred eleven trillion, one hundred ten billion, one hundred eleven million, two hundred twelve thousand, thirteen".