273203245361 has 2 divisors, whose sum is σ = 273203245362. Its totient is φ = 273203245360.

The previous prime is 273203245351. The next prime is 273203245369. The reversal of 273203245361 is 163542302372.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 247686377761 + 25516867600 = 497681^2 + 159740^2 .

It is a cyclic number.

It is not a de Polignac number, because 273203245361 - 2³⁴ = 256023376177 is a prime.

It is not a weakly prime, because it can be changed into another prime (273203245369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136601622680 + 136601622681.

It is an arithmetic number, because the mean of its divisors is an integer number (136601622681).

Almost surely, 2^273203245361 is an apocalyptic number.

It is an amenable number.

273203245361 is a deficient number, since it is larger than the sum of its proper divisors (1).

273203245361 is an equidigital number, since it uses as much as digits as its factorization.

273203245361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 38.

The spelling of 273203245361 in words is "two hundred seventy-three billion, two hundred three million, two hundred forty-five thousand, three hundred sixty-one".