1282731009091 has 6 divisors (see below), whose sum is σ = 1492156480020. Its totient is φ = 1099483722036.

The previous prime is 1282731009073. The next prime is 1282731009149. The reversal of 1282731009091 is 1909001372821.

It is not a de Polignac number, because 1282731009091 - 2¹⁹ = 1282730484803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1282731009061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13089091881 + ... + 13089091978.

It is an arithmetic number, because the mean of its divisors is an integer number (248692746670).

Almost surely, 2^{1282731009091} is an apocalyptic number.

1282731009091 is a deficient number, since it is larger than the sum of its proper divisors (209425470929).

1282731009091 is an equidigital number, since it uses as much as digits as its factorization.

1282731009091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26178183873 (or 26178183866 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 43.

The spelling of 1282731009091 in words is "one trillion, two hundred eighty-two billion, seven hundred thirty-one million, nine thousand, ninety-one".