1270310100173 has 2 divisors, whose sum is σ = 1270310100174. Its totient is φ = 1270310100172.

The previous prime is 1270310100151. The next prime is 1270310100187. The reversal of 1270310100173 is 3710010130721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 906185955844 + 364124144329 = 951938^2 + 603427^2 .

It is a cyclic number.

It is not a de Polignac number, because 1270310100173 - 2³⁸ = 995432193229 is a prime.

It is a super-2 number, since 2×1270310100173² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1270310100373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 635155050086 + 635155050087.

It is an arithmetic number, because the mean of its divisors is an integer number (635155050087).

Almost surely, 2^{1270310100173} is an apocalyptic number.

It is an amenable number.

1270310100173 is a deficient number, since it is larger than the sum of its proper divisors (1).

1270310100173 is an equidigital number, since it uses as much as digits as its factorization.

1270310100173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 882, while the sum is 26.

Adding to 1270310100173 its reverse (3710010130721), we get a palindrome (4980320230894).

The spelling of 1270310100173 in words is "one trillion, two hundred seventy billion, three hundred ten million, one hundred thousand, one hundred seventy-three".