321420233339353 has 2 divisors, whose sum is σ = 321420233339354. Its totient is φ = 321420233339352.

The previous prime is 321420233339347. The next prime is 321420233339369. The reversal of 321420233339353 is 353933332024123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 267332048485264 + 54088184854089 = 16350292^2 + 7354467^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321420233339353 is a prime.

It is a super-3 number, since 3×321420233339353³ (a number of 44 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (321420233339323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160710116669676 + 160710116669677.

It is an arithmetic number, because the mean of its divisors is an integer number (160710116669677).

Almost surely, 2^{321420233339353} is an apocalyptic number.

It is an amenable number.

321420233339353 is a deficient number, since it is larger than the sum of its proper divisors (1).

321420233339353 is an equidigital number, since it uses as much as digits as its factorization.

321420233339353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3149280, while the sum is 46.

The spelling of 321420233339353 in words is "three hundred twenty-one trillion, four hundred twenty billion, two hundred thirty-three million, three hundred thirty-nine thousand, three hundred fifty-three".