1272901300873 has 2 divisors, whose sum is σ = 1272901300874. Its totient is φ = 1272901300872.

The previous prime is 1272901300843. The next prime is 1272901301011. The reversal of 1272901300873 is 3780031092721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1269344729104 + 3556571769 = 1126652^2 + 59637^2 .

It is a cyclic number.

It is not a de Polignac number, because 1272901300873 - 2⁵ = 1272901300841 is a prime.

It is not a weakly prime, because it can be changed into another prime (1272901300843) 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, 636450650436 + 636450650437.

It is an arithmetic number, because the mean of its divisors is an integer number (636450650437).

Almost surely, 2^{1272901300873} is an apocalyptic number.

It is an amenable number.

1272901300873 is a deficient number, since it is larger than the sum of its proper divisors (1).

1272901300873 is an equidigital number, since it uses as much as digits as its factorization.

1272901300873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 43.

The spelling of 1272901300873 in words is "one trillion, two hundred seventy-two billion, nine hundred one million, three hundred thousand, eight hundred seventy-three".