1285120018627 has 2 divisors, whose sum is σ = 1285120018628. Its totient is φ = 1285120018626.

The previous prime is 1285120018607. The next prime is 1285120018639. The reversal of 1285120018627 is 7268100215821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1285120018627 - 2¹⁹ = 1285119494339 is a prime.

It is not a weakly prime, because it can be changed into another prime (1285120018607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 642560009313 + 642560009314.

It is an arithmetic number, because the mean of its divisors is an integer number (642560009314).

Almost surely, 2^{1285120018627} is an apocalyptic number.

1285120018627 is a deficient number, since it is larger than the sum of its proper divisors (1).

1285120018627 is an equidigital number, since it uses as much as digits as its factorization.

1285120018627 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 107520, while the sum is 43.

The spelling of 1285120018627 in words is "one trillion, two hundred eighty-five billion, one hundred twenty million, eighteen thousand, six hundred twenty-seven".