198303812323 has 2 divisors, whose sum is σ = 198303812324. Its totient is φ = 198303812322.

The previous prime is 198303812233. The next prime is 198303812327. The reversal of 198303812323 is 323218303891.

198303812323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (198303812233) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-198303812323 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 198303812323.

It is not a weakly prime, because it can be changed into another prime (198303812327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99151906161 + 99151906162.

It is an arithmetic number, because the mean of its divisors is an integer number (99151906162).

Almost surely, 2^198303812323 is an apocalyptic number.

198303812323 is a deficient number, since it is larger than the sum of its proper divisors (1).

198303812323 is an equidigital number, since it uses as much as digits as its factorization.

198303812323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 43.

The spelling of 198303812323 in words is "one hundred ninety-eight billion, three hundred three million, eight hundred twelve thousand, three hundred twenty-three".