343404404201 has 4 divisors (see below), whose sum is σ = 343421756292. Its totient is φ = 343387052112.

The previous prime is 343404404149. The next prime is 343404404219. The reversal of 343404404201 is 102404404343.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102404404343 = 1459 ⋅70188077.

It can be written as a sum of positive squares in 2 ways, for example, as 1044840976 + 342359563225 = 32324^2 + 585115^2 .

It is a cyclic number.

It is not a de Polignac number, because 343404404201 - 2¹⁸ = 343404142057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (343404404251) 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, 8646326 + ... + 8685951.

It is an arithmetic number, because the mean of its divisors is an integer number (85855439073).

Almost surely, 2^343404404201 is an apocalyptic number.

It is an amenable number.

343404404201 is a deficient number, since it is larger than the sum of its proper divisors (17352091).

343404404201 is a wasteful number, since it uses less digits than its factorization.

343404404201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17352090.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 343404404201 its reverse (102404404343), we get a palindrome (445808808544).

The spelling of 343404404201 in words is "three hundred forty-three billion, four hundred four million, four hundred four thousand, two hundred one".