351352321 has 2 divisors, whose sum is σ = 351352322. Its totient is φ = 351352320.

The previous prime is 351352319. The next prime is 351352361. The reversal of 351352321 is 123253153.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 349278721 + 2073600 = 18689^2 + 1440^2 .

It is a cyclic number.

It is not a de Polignac number, because 351352321 - 2¹ = 351352319 is a prime.

Together with 351352319, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (351352361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175676160 + 175676161.

It is an arithmetic number, because the mean of its divisors is an integer number (175676161).

Almost surely, 2^351352321 is an apocalyptic number.

It is an amenable number.

351352321 is a deficient number, since it is larger than the sum of its proper divisors (1).

351352321 is an equidigital number, since it uses as much as digits as its factorization.

351352321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2700, while the sum is 25.

The square root of 351352321 is about 18744.3943887233. The cubic root of 351352321 is about 705.6363457926.

The spelling of 351352321 in words is "three hundred fifty-one million, three hundred fifty-two thousand, three hundred twenty-one".