343432121 has 2 divisors, whose sum is σ = 343432122. Its totient is φ = 343432120.

The previous prime is 343432091. The next prime is 343432127. The reversal of 343432121 is 121234343.

343432121 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 194323600 + 149108521 = 13940^2 + 12211^2 .

It is a cyclic number.

It is not a de Polignac number, because 343432121 - 2¹⁰ = 343431097 is a prime.

It is a Chen prime.

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

It is not a weakly prime, because it can be changed into another prime (343432127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171716060 + 171716061.

It is an arithmetic number, because the mean of its divisors is an integer number (171716061).

Almost surely, 2^343432121 is an apocalyptic number.

It is an amenable number.

343432121 is a deficient number, since it is larger than the sum of its proper divisors (1).

343432121 is an equidigital number, since it uses as much as digits as its factorization.

343432121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 23.

The square root of 343432121 is about 18531.9216758543. The cubic root of 343432121 is about 700.2938365040.

Adding to 343432121 its reverse (121234343), we get a palindrome (464666464).

The spelling of 343432121 in words is "three hundred forty-three million, four hundred thirty-two thousand, one hundred twenty-one".