204343434401 has 4 divisors (see below), whose sum is σ = 206151783492. Its totient is φ = 202535085312.

The previous prime is 204343434331. The next prime is 204343434413. The reversal of 204343434401 is 104434343402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41127434401 + 163216000000 = 202799^2 + 404000^2 .

It is a cyclic number.

It is not a de Polignac number, because 204343434401 - 2²⁶ = 204276325537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204343434461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 904174376 + ... + 904174601.

It is an arithmetic number, because the mean of its divisors is an integer number (51537945873).

Almost surely, 2^204343434401 is an apocalyptic number.

It is an amenable number.

204343434401 is a deficient number, since it is larger than the sum of its proper divisors (1808349091).

204343434401 is a wasteful number, since it uses less digits than its factorization.

204343434401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1808349090.

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 204343434401 its reverse (104434343402), we get a palindrome (308777777803).

Subtracting from 204343434401 its reverse (104434343402), we obtain a palindrome (99909090999).

The spelling of 204343434401 in words is "two hundred four billion, three hundred forty-three million, four hundred thirty-four thousand, four hundred one".