111009996917797 has 2 divisors, whose sum is σ = 111009996917798. Its totient is φ = 111009996917796.

The previous prime is 111009996917777. The next prime is 111009996917873. The reversal of 111009996917797 is 797719699900111.

It is an a-pointer prime, because the next prime (111009996917873) can be obtained adding 111009996917797 to its sum of digits (76).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105505746016801 + 5504250900996 = 10271599^2 + 2346114^2 .

It is a cyclic number.

It is not a de Polignac number, because 111009996917797 - 2³⁹ = 110460241103909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111009996917767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55504998458898 + 55504998458899.

It is an arithmetic number, because the mean of its divisors is an integer number (55504998458899).

Almost surely, 2^{111009996917797} is an apocalyptic number.

It is an amenable number.

111009996917797 is a deficient number, since it is larger than the sum of its proper divisors (1).

111009996917797 is an equidigital number, since it uses as much as digits as its factorization.

111009996917797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 121522842, while the sum is 76.

The spelling of 111009996917797 in words is "one hundred eleven trillion, nine billion, nine hundred ninety-six million, nine hundred seventeen thousand, seven hundred ninety-seven".