350344421321 has 2 divisors, whose sum is σ = 350344421322. Its totient is φ = 350344421320.

The previous prime is 350344421303. The next prime is 350344421407. The reversal of 350344421321 is 123124443053.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 346143955600 + 4200465721 = 588340^2 + 64811^2 .

It is a cyclic number.

It is not a de Polignac number, because 350344421321 - 2¹⁰ = 350344420297 is a prime.

It is not a weakly prime, because it can be changed into another prime (350344121321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175172210660 + 175172210661.

It is an arithmetic number, because the mean of its divisors is an integer number (175172210661).

Almost surely, 2^350344421321 is an apocalyptic number.

It is an amenable number.

350344421321 is a deficient number, since it is larger than the sum of its proper divisors (1).

350344421321 is an equidigital number, since it uses as much as digits as its factorization.

350344421321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 350344421321 its reverse (123124443053), we get a palindrome (473468864374).

The spelling of 350344421321 in words is "three hundred fifty billion, three hundred forty-four million, four hundred twenty-one thousand, three hundred twenty-one".