350344121321 has 2 divisors, whose sum is σ = 350344121322. Its totient is φ = 350344121320.

The previous prime is 350344121293. The next prime is 350344121381. The reversal of 350344121321 is 123121443053.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 257678064400 + 92666056921 = 507620^2 + 304411^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-350344121321 is a prime.

It is not a weakly prime, because it can be changed into another prime (350344121381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175172060660 + 175172060661.

It is an arithmetic number, because the mean of its divisors is an integer number (175172060661).

Almost surely, 2^350344121321 is an apocalyptic number.

It is an amenable number.

350344121321 is a deficient number, since it is larger than the sum of its proper divisors (1).

350344121321 is an equidigital number, since it uses as much as digits as its factorization.

350344121321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 350344121321 its reverse (123121443053), we get a palindrome (473465564374).

The spelling of 350344121321 in words is "three hundred fifty billion, three hundred forty-four million, one hundred twenty-one thousand, three hundred twenty-one".