111113345566709 has 2 divisors, whose sum is σ = 111113345566710. Its totient is φ = 111113345566708.

The previous prime is 111113345566687. The next prime is 111113345566801. The reversal of 111113345566709 is 907665543311111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57947446231684 + 53165899335025 = 7612322^2 + 7291495^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111113345566709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111113345560709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55556672783354 + 55556672783355.

It is an arithmetic number, because the mean of its divisors is an integer number (55556672783355).

Almost surely, 2^{111113345566709} is an apocalyptic number.

It is an amenable number.

111113345566709 is a deficient number, since it is larger than the sum of its proper divisors (1).

111113345566709 is an equidigital number, since it uses as much as digits as its factorization.

111113345566709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2041200, while the sum is 53.

The spelling of 111113345566709 in words is "one hundred eleven trillion, one hundred thirteen billion, three hundred forty-five million, five hundred sixty-six thousand, seven hundred nine".