243333002197 has 2 divisors, whose sum is σ = 243333002198. Its totient is φ = 243333002196.

The previous prime is 243333002183. The next prime is 243333002291. The reversal of 243333002197 is 791200333342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 194116023396 + 49216978801 = 440586^2 + 221849^2 .

It is a cyclic number.

It is not a de Polignac number, because 243333002197 - 2⁷ = 243333002069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243333002167) 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, 121666501098 + 121666501099.

It is an arithmetic number, because the mean of its divisors is an integer number (121666501099).

Almost surely, 2^243333002197 is an apocalyptic number.

It is an amenable number.

243333002197 is a deficient number, since it is larger than the sum of its proper divisors (1).

243333002197 is an equidigital number, since it uses as much as digits as its factorization.

243333002197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 37.

The spelling of 243333002197 in words is "two hundred forty-three billion, three hundred thirty-three million, two thousand, one hundred ninety-seven".