204011244197 has 2 divisors, whose sum is σ = 204011244198. Its totient is φ = 204011244196.

The previous prime is 204011244193. The next prime is 204011244313. The reversal of 204011244197 is 791442110402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139816914241 + 64194329956 = 373921^2 + 253366^2 .

It is a cyclic number.

It is not a de Polignac number, because 204011244197 - 2² = 204011244193 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204011244193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102005622098 + 102005622099.

It is an arithmetic number, because the mean of its divisors is an integer number (102005622099).

Almost surely, 2^204011244197 is an apocalyptic number.

It is an amenable number.

204011244197 is a deficient number, since it is larger than the sum of its proper divisors (1).

204011244197 is an equidigital number, since it uses as much as digits as its factorization.

204011244197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 35.

Adding to 204011244197 its reverse (791442110402), we get a palindrome (995453354599).

The spelling of 204011244197 in words is "two hundred four billion, eleven million, two hundred forty-four thousand, one hundred ninety-seven".