281344720271 has 2 divisors, whose sum is σ = 281344720272. Its totient is φ = 281344720270.

The previous prime is 281344720249. The next prime is 281344720331. The reversal of 281344720271 is 172027443182.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 281344720271 - 2¹⁸ = 281344458127 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (281344720211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140672360135 + 140672360136.

It is an arithmetic number, because the mean of its divisors is an integer number (140672360136).

Almost surely, 2^281344720271 is an apocalyptic number.

281344720271 is a deficient number, since it is larger than the sum of its proper divisors (1).

281344720271 is an equidigital number, since it uses as much as digits as its factorization.

281344720271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 150528, while the sum is 41.

The spelling of 281344720271 in words is "two hundred eighty-one billion, three hundred forty-four million, seven hundred twenty thousand, two hundred seventy-one".