201033420173 has 2 divisors, whose sum is σ = 201033420174. Its totient is φ = 201033420172.

The previous prime is 201033420163. The next prime is 201033420277. The reversal of 201033420173 is 371024330102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104301223849 + 96732196324 = 322957^2 + 311018^2 .

It is a cyclic number.

It is not a de Polignac number, because 201033420173 - 2¹⁶ = 201033354637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201033420163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100516710086 + 100516710087.

It is an arithmetic number, because the mean of its divisors is an integer number (100516710087).

Almost surely, 2^201033420173 is an apocalyptic number.

It is an amenable number.

201033420173 is a deficient number, since it is larger than the sum of its proper divisors (1).

201033420173 is an equidigital number, since it uses as much as digits as its factorization.

201033420173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 26.

Adding to 201033420173 its reverse (371024330102), we get a palindrome (572057750275).

The spelling of 201033420173 in words is "two hundred one billion, thirty-three million, four hundred twenty thousand, one hundred seventy-three".