343540351213 has 2 divisors, whose sum is σ = 343540351214. Its totient is φ = 343540351212.

The previous prime is 343540351163. The next prime is 343540351241. The reversal of 343540351213 is 312153045343.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 331686150084 + 11854201129 = 575922^2 + 108877^2 .

It is a cyclic number.

It is not a de Polignac number, because 343540351213 - 2²¹ = 343538254061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343540351613) 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, 171770175606 + 171770175607.

It is an arithmetic number, because the mean of its divisors is an integer number (171770175607).

Almost surely, 2^343540351213 is an apocalyptic number.

It is an amenable number.

343540351213 is a deficient number, since it is larger than the sum of its proper divisors (1).

343540351213 is an equidigital number, since it uses as much as digits as its factorization.

343540351213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 34.

Adding to 343540351213 its reverse (312153045343), we get a palindrome (655693396556).

The spelling of 343540351213 in words is "three hundred forty-three billion, five hundred forty million, three hundred fifty-one thousand, two hundred thirteen".