352421501524321 has 2 divisors, whose sum is σ = 352421501524322. Its totient is φ = 352421501524320.

The previous prime is 352421501524307. The next prime is 352421501524409. The reversal of 352421501524321 is 123425105124253.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 188295040420096 + 164126461104225 = 13722064^2 + 12811185^2 .

It is an emirp because it is prime and its reverse (123425105124253) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 352421501524321 - 2¹³ = 352421501516129 is a prime.

It is a super-2 number, since 2×352421501524321² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (352421501524121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176210750762160 + 176210750762161.

It is an arithmetic number, because the mean of its divisors is an integer number (176210750762161).

Almost surely, 2^{352421501524321} is an apocalyptic number.

It is an amenable number.

352421501524321 is a deficient number, since it is larger than the sum of its proper divisors (1).

352421501524321 is an equidigital number, since it uses as much as digits as its factorization.

352421501524321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288000, while the sum is 40.

Adding to 352421501524321 its reverse (123425105124253), we get a palindrome (475846606648574).

The spelling of 352421501524321 in words is "three hundred fifty-two trillion, four hundred twenty-one billion, five hundred one million, five hundred twenty-four thousand, three hundred twenty-one".