343434121 has 4 divisors (see below), whose sum is σ = 348138772. Its totient is φ = 338729472.

The previous prime is 343434097. The next prime is 343434131. The reversal of 343434121 is 121434343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 121434343 = 839 ⋅144737.

It can be written as a sum of positive squares in 2 ways, for example, as 300675600 + 42758521 = 17340^2 + 6539^2 .

It is a cyclic number.

It is not a de Polignac number, because 343434121 - 2¹¹ = 343432073 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (343434131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2352216 + ... + 2352361.

It is an arithmetic number, because the mean of its divisors is an integer number (87034693).

Almost surely, 2^343434121 is an apocalyptic number.

It is an amenable number.

343434121 is a deficient number, since it is larger than the sum of its proper divisors (4704651).

343434121 is an equidigital number, since it uses as much as digits as its factorization.

343434121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4704650.

The product of its digits is 3456, while the sum is 25.

The square root of 343434121 is about 18531.9756367204. The cubic root of 343434121 is about 700.2951959041.

Adding to 343434121 its reverse (121434343), we get a palindrome (464868464).

It can be divided in two parts, 343434 and 121, that multiplied together give a palindrome (41555514).

The spelling of 343434121 in words is "three hundred forty-three million, four hundred thirty-four thousand, one hundred twenty-one".