343564151221 has 2 divisors, whose sum is σ = 343564151222. Its totient is φ = 343564151220.

The previous prime is 343564151171. The next prime is 343564151297. The reversal of 343564151221 is 122151465343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 288971828721 + 54592322500 = 537561^2 + 233650^2 .

It is an emirp because it is prime and its reverse (122151465343) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 343564151221 - 2⁷ = 343564151093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343564157221) 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, 171782075610 + 171782075611.

It is an arithmetic number, because the mean of its divisors is an integer number (171782075611).

Almost surely, 2^343564151221 is an apocalyptic number.

It is an amenable number.

343564151221 is a deficient number, since it is larger than the sum of its proper divisors (1).

343564151221 is an equidigital number, since it uses as much as digits as its factorization.

343564151221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86400, while the sum is 37.

The spelling of 343564151221 in words is "three hundred forty-three billion, five hundred sixty-four million, one hundred fifty-one thousand, two hundred twenty-one".