111684593180201 has 2 divisors, whose sum is σ = 111684593180202. Its totient is φ = 111684593180200.

The previous prime is 111684593180129. The next prime is 111684593180213. The reversal of 111684593180201 is 102081395486111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75057271873600 + 36627321306601 = 8663560^2 + 6052051^2 .

It is an emirp because it is prime and its reverse (102081395486111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111684593180201 - 2⁴² = 107286546669097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111684593180201.

It is not a weakly prime, because it can be changed into another prime (111684593180101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55842296590100 + 55842296590101.

It is an arithmetic number, because the mean of its divisors is an integer number (55842296590101).

Almost surely, 2^{111684593180201} is an apocalyptic number.

It is an amenable number.

111684593180201 is a deficient number, since it is larger than the sum of its proper divisors (1).

111684593180201 is an equidigital number, since it uses as much as digits as its factorization.

111684593180201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 414720, while the sum is 50.

The spelling of 111684593180201 in words is "one hundred eleven trillion, six hundred eighty-four billion, five hundred ninety-three million, one hundred eighty thousand, two hundred one".