1287466018243 has 2 divisors, whose sum is σ = 1287466018244. Its totient is φ = 1287466018242.

The previous prime is 1287466018229. The next prime is 1287466018259. The reversal of 1287466018243 is 3428106647821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1287466018243 - 2⁵ = 1287466018211 is a prime.

It is not a weakly prime, because it can be changed into another prime (1287466088243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 643733009121 + 643733009122.

It is an arithmetic number, because the mean of its divisors is an integer number (643733009122).

Almost surely, 2^{1287466018243} is an apocalyptic number.

1287466018243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1287466018243 is an equidigital number, since it uses as much as digits as its factorization.

1287466018243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3096576, while the sum is 52.

The spelling of 1287466018243 in words is "one trillion, two hundred eighty-seven billion, four hundred sixty-six million, eighteen thousand, two hundred forty-three".