4351225345321 has 2 divisors, whose sum is σ = 4351225345322. Its totient is φ = 4351225345320.

The previous prime is 4351225345273. The next prime is 4351225345367. The reversal of 4351225345321 is 1235435221534.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3602161060096 + 749064285225 = 1897936^2 + 865485^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4351225345321 is a prime.

It is not a weakly prime, because it can be changed into another prime (4351225345121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2175612672660 + 2175612672661.

It is an arithmetic number, because the mean of its divisors is an integer number (2175612672661).

Almost surely, 2^{4351225345321} is an apocalyptic number.

It is an amenable number.

4351225345321 is a deficient number, since it is larger than the sum of its proper divisors (1).

4351225345321 is an equidigital number, since it uses as much as digits as its factorization.

4351225345321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432000, while the sum is 40.

The spelling of 4351225345321 in words is "four trillion, three hundred fifty-one billion, two hundred twenty-five million, three hundred forty-five thousand, three hundred twenty-one".