343051321 has 2 divisors, whose sum is σ = 343051322. Its totient is φ = 343051320.

The previous prime is 343051277. The next prime is 343051333. The reversal of 343051321 is 123150343.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 217857600 + 125193721 = 14760^2 + 11189^2 .

It is a cyclic number.

It is not a de Polignac number, because 343051321 - 2²¹ = 340954169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 343051292 and 343051301.

It is not a weakly prime, because it can be changed into another prime (343051361) 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 as a sum of consecutive naturals, namely, 171525660 + 171525661.

It is an arithmetic number, because the mean of its divisors is an integer number (171525661).

Almost surely, 2^343051321 is an apocalyptic number.

It is an amenable number.

343051321 is a deficient number, since it is larger than the sum of its proper divisors (1).

343051321 is an equidigital number, since it uses as much as digits as its factorization.

343051321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 343051321 is about 18521.6446623943. The cubic root of 343051321 is about 700.0349105038.

The spelling of 343051321 in words is "three hundred forty-three million, fifty-one thousand, three hundred twenty-one".