281421647323 has 2 divisors, whose sum is σ = 281421647324. Its totient is φ = 281421647322.

The previous prime is 281421647317. The next prime is 281421647329. The reversal of 281421647323 is 323746124182.

It is a balanced prime because it is at equal distance from previous prime (281421647317) and next prime (281421647329).

It is a cyclic number.

It is not a de Polignac number, because 281421647323 - 2⁵ = 281421647291 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 281421647323.

It is not a weakly prime, because it can be changed into another prime (281421647329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140710823661 + 140710823662.

It is an arithmetic number, because the mean of its divisors is an integer number (140710823662).

Almost surely, 2^281421647323 is an apocalyptic number.

281421647323 is a deficient number, since it is larger than the sum of its proper divisors (1).

281421647323 is an equidigital number, since it uses as much as digits as its factorization.

281421647323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 387072, while the sum is 43.

The spelling of 281421647323 in words is "two hundred eighty-one billion, four hundred twenty-one million, six hundred forty-seven thousand, three hundred twenty-three".