173220203221133 has 2 divisors, whose sum is σ = 173220203221134. Its totient is φ = 173220203221132.

The previous prime is 173220203221099. The next prime is 173220203221183. The reversal of 173220203221133 is 331122302022371.

173220203221133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 173219370206089 + 833015044 = 13161283^2 + 28862^2 .

It is an emirp because it is prime and its reverse (331122302022371) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 173220203221133 - 2¹² = 173220203217037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 173220203221133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (173220203221183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86610101610566 + 86610101610567.

It is an arithmetic number, because the mean of its divisors is an integer number (86610101610567).

Almost surely, 2^{173220203221133} is an apocalyptic number.

It is an amenable number.

173220203221133 is a deficient number, since it is larger than the sum of its proper divisors (1).

173220203221133 is an equidigital number, since it uses as much as digits as its factorization.

173220203221133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 32.

The spelling of 173220203221133 in words is "one hundred seventy-three trillion, two hundred twenty billion, two hundred three million, two hundred twenty-one thousand, one hundred thirty-three".