204343103191 has 2 divisors, whose sum is σ = 204343103192. Its totient is φ = 204343103190.

The previous prime is 204343103183. The next prime is 204343103339. The reversal of 204343103191 is 191301343402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 204343103191 - 2³ = 204343103183 is a prime.

It is a super-2 number, since 2×204343103191² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204343103171) 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, 102171551595 + 102171551596.

It is an arithmetic number, because the mean of its divisors is an integer number (102171551596).

Almost surely, 2^204343103191 is an apocalyptic number.

204343103191 is a deficient number, since it is larger than the sum of its proper divisors (1).

204343103191 is an equidigital number, since it uses as much as digits as its factorization.

204343103191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

Adding to 204343103191 its reverse (191301343402), we get a palindrome (395644446593).

The spelling of 204343103191 in words is "two hundred four billion, three hundred forty-three million, one hundred three thousand, one hundred ninety-one".