1823318340443 has 2 divisors, whose sum is σ = 1823318340444. Its totient is φ = 1823318340442.

The previous prime is 1823318340433. The next prime is 1823318340449. The reversal of 1823318340443 is 3440438133281.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1823318340443 - 2⁴ = 1823318340427 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1823318340394 and 1823318340403.

It is not a weakly prime, because it can be changed into another prime (1823318340449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 911659170221 + 911659170222.

It is an arithmetic number, because the mean of its divisors is an integer number (911659170222).

Almost surely, 2^{1823318340443} is an apocalyptic number.

1823318340443 is a deficient number, since it is larger than the sum of its proper divisors (1).

1823318340443 is an equidigital number, since it uses as much as digits as its factorization.

1823318340443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 663552, while the sum is 44.

The spelling of 1823318340443 in words is "one trillion, eight hundred twenty-three billion, three hundred eighteen million, three hundred forty thousand, four hundred forty-three".