275321800321523 has 2 divisors, whose sum is σ = 275321800321524. Its totient is φ = 275321800321522.

The previous prime is 275321800321483. The next prime is 275321800321543. The reversal of 275321800321523 is 325123008123572.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-275321800321523 is a prime.

It is not a weakly prime, because it can be changed into another prime (275321800321543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137660900160761 + 137660900160762.

It is an arithmetic number, because the mean of its divisors is an integer number (137660900160762).

Almost surely, 2^{275321800321523} is an apocalyptic number.

275321800321523 is a deficient number, since it is larger than the sum of its proper divisors (1).

275321800321523 is an equidigital number, since it uses as much as digits as its factorization.

275321800321523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 604800, while the sum is 44.

The spelling of 275321800321523 in words is "two hundred seventy-five trillion, three hundred twenty-one billion, eight hundred million, three hundred twenty-one thousand, five hundred twenty-three".