1668350001323 has 2 divisors, whose sum is σ = 1668350001324. Its totient is φ = 1668350001322.

The previous prime is 1668350001319. The next prime is 1668350001359. The reversal of 1668350001323 is 3231000538661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1668350001323 - 2² = 1668350001319 is a prime.

It is not a weakly prime, because it can be changed into another prime (1668350004323) 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, 834175000661 + 834175000662.

It is an arithmetic number, because the mean of its divisors is an integer number (834175000662).

Almost surely, 2^{1668350001323} is an apocalyptic number.

1668350001323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1668350001323 is an equidigital number, since it uses as much as digits as its factorization.

1668350001323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 38.

Adding to 1668350001323 its reverse (3231000538661), we get a palindrome (4899350539984).

The spelling of 1668350001323 in words is "one trillion, six hundred sixty-eight billion, three hundred fifty million, one thousand, three hundred twenty-three".