281200230491 has 2 divisors, whose sum is σ = 281200230492. Its totient is φ = 281200230490.

The previous prime is 281200230463. The next prime is 281200230503. The reversal of 281200230491 is 194032002182.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 281200230491 - 2⁶ = 281200230427 is a prime.

It is a super-3 number, since 3×281200230491³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (281200230791) 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, 140600115245 + 140600115246.

It is an arithmetic number, because the mean of its divisors is an integer number (140600115246).

Almost surely, 2^281200230491 is an apocalyptic number.

281200230491 is a deficient number, since it is larger than the sum of its proper divisors (1).

281200230491 is an equidigital number, since it uses as much as digits as its factorization.

281200230491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 32.

The spelling of 281200230491 in words is "two hundred eighty-one billion, two hundred million, two hundred thirty thousand, four hundred ninety-one".