281455919203 has 2 divisors, whose sum is σ = 281455919204. Its totient is φ = 281455919202.

The previous prime is 281455919191. The next prime is 281455919207. The reversal of 281455919203 is 302919554182.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-281455919203 is a prime.

It is not a weakly prime, because it can be changed into another prime (281455919207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140727959601 + 140727959602.

It is an arithmetic number, because the mean of its divisors is an integer number (140727959602).

Almost surely, 2^281455919203 is an apocalyptic number.

281455919203 is a deficient number, since it is larger than the sum of its proper divisors (1).

281455919203 is an equidigital number, since it uses as much as digits as its factorization.

281455919203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 777600, while the sum is 49.

The spelling of 281455919203 in words is "two hundred eighty-one billion, four hundred fifty-five million, nine hundred nineteen thousand, two hundred three".