204401302397 has 2 divisors, whose sum is σ = 204401302398. Its totient is φ = 204401302396.

The previous prime is 204401302387. The next prime is 204401302409. The reversal of 204401302397 is 793203104402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 182285448601 + 22115853796 = 426949^2 + 148714^2 .

It is a cyclic number.

It is not a de Polignac number, because 204401302397 - 2²⁴ = 204384525181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204401302387) 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, 102200651198 + 102200651199.

It is an arithmetic number, because the mean of its divisors is an integer number (102200651199).

Almost surely, 2^204401302397 is an apocalyptic number.

It is an amenable number.

204401302397 is a deficient number, since it is larger than the sum of its proper divisors (1).

204401302397 is an equidigital number, since it uses as much as digits as its factorization.

204401302397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 35.

Adding to 204401302397 its reverse (793203104402), we get a palindrome (997604406799).

The spelling of 204401302397 in words is "two hundred four billion, four hundred one million, three hundred two thousand, three hundred ninety-seven".