1121005066609 has 2 divisors, whose sum is σ = 1121005066610. Its totient is φ = 1121005066608.

The previous prime is 1121005066553. The next prime is 1121005066637. The reversal of 1121005066609 is 9066605001211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 755134930225 + 365870136384 = 868985^2 + 604872^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121005066609 - 2¹⁷ = 1121004935537 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121005066009) 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, 560502533304 + 560502533305.

It is an arithmetic number, because the mean of its divisors is an integer number (560502533305).

Almost surely, 2^{1121005066609} is an apocalyptic number.

It is an amenable number.

1121005066609 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121005066609 is an equidigital number, since it uses as much as digits as its factorization.

1121005066609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 37.

The spelling of 1121005066609 in words is "one trillion, one hundred twenty-one billion, five million, sixty-six thousand, six hundred nine".