198303812233 has 2 divisors, whose sum is σ = 198303812234. Its totient is φ = 198303812232.

The previous prime is 198303812183. The next prime is 198303812323. The reversal of 198303812233 is 332218303891.

Together with next prime (198303812323) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 185324223049 + 12979589184 = 430493^2 + 113928^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-198303812233 is a prime.

It is a super-2 number, since 2×198303812233² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 198303812233.

It is not a weakly prime, because it can be changed into another prime (198303812633) 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, 99151906116 + 99151906117.

It is an arithmetic number, because the mean of its divisors is an integer number (99151906117).

Almost surely, 2^198303812233 is an apocalyptic number.

It is an amenable number.

198303812233 is a deficient number, since it is larger than the sum of its proper divisors (1).

198303812233 is an equidigital number, since it uses as much as digits as its factorization.

198303812233 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 198303812233 in words is "one hundred ninety-eight billion, three hundred three million, eight hundred twelve thousand, two hundred thirty-three".