1669330123 has 2 divisors, whose sum is σ = 1669330124. Its totient is φ = 1669330122.

The previous prime is 1669330109. The next prime is 1669330141. The reversal of 1669330123 is 3210339661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1669330123 - 2⁹ = 1669329611 is a prime.

It is not a weakly prime, because it can be changed into another prime (1669330183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 834665061 + 834665062.

It is an arithmetic number, because the mean of its divisors is an integer number (834665062).

Almost surely, 2^1669330123 is an apocalyptic number.

1669330123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1669330123 is an equidigital number, since it uses as much as digits as its factorization.

1669330123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 34.

The square root of 1669330123 is about 40857.4365691241. The cubic root of 1669330123 is about 1186.2623406937.

Adding to 1669330123 its reverse (3210339661), we get a palindrome (4879669784).

The spelling of 1669330123 in words is "one billion, six hundred sixty-nine million, three hundred thirty thousand, one hundred twenty-three".