111211200073 has 2 divisors, whose sum is σ = 111211200074. Its totient is φ = 111211200072.

The previous prime is 111211200053. The next prime is 111211200103. The reversal of 111211200073 is 370002112111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63681531904 + 47529668169 = 252352^2 + 218013^2 .

It is an emirp because it is prime and its reverse (370002112111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111211200073 - 2¹³ = 111211191881 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111211200073.

It is not a weakly prime, because it can be changed into another prime (111211200053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55605600036 + 55605600037.

It is an arithmetic number, because the mean of its divisors is an integer number (55605600037).

Almost surely, 2^111211200073 is an apocalyptic number.

It is an amenable number.

111211200073 is a deficient number, since it is larger than the sum of its proper divisors (1).

111211200073 is an equidigital number, since it uses as much as digits as its factorization.

111211200073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 19.

Adding to 111211200073 its reverse (370002112111), we get a palindrome (481213312184).

The spelling of 111211200073 in words is "one hundred eleven billion, two hundred eleven million, two hundred thousand, seventy-three".