2010001020173 has 2 divisors, whose sum is σ = 2010001020174. Its totient is φ = 2010001020172.

The previous prime is 2010001020151. The next prime is 2010001020221. The reversal of 2010001020173 is 3710201000102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1522010755204 + 487990264969 = 1233698^2 + 698563^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2010001020173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2010001020143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005000510086 + 1005000510087.

It is an arithmetic number, because the mean of its divisors is an integer number (1005000510087).

Almost surely, 2^{2010001020173} is an apocalyptic number.

It is an amenable number.

2010001020173 is a deficient number, since it is larger than the sum of its proper divisors (1).

2010001020173 is an equidigital number, since it uses as much as digits as its factorization.

2010001020173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84, while the sum is 17.

Adding to 2010001020173 its reverse (3710201000102), we get a palindrome (5720202020275).

The spelling of 2010001020173 in words is "two trillion, ten billion, one million, twenty thousand, one hundred seventy-three".