314542220220421 has 2 divisors, whose sum is σ = 314542220220422. Its totient is φ = 314542220220420.

The previous prime is 314542220220391. The next prime is 314542220220457. The reversal of 314542220220421 is 124022022245413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200151473300100 + 114390746920321 = 14147490^2 + 10695361^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-314542220220421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (314542220260421) 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, 157271110110210 + 157271110110211.

It is an arithmetic number, because the mean of its divisors is an integer number (157271110110211).

Almost surely, 2^{314542220220421} is an apocalyptic number.

It is an amenable number.

314542220220421 is a deficient number, since it is larger than the sum of its proper divisors (1).

314542220220421 is an equidigital number, since it uses as much as digits as its factorization.

314542220220421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61440, while the sum is 34.

Adding to 314542220220421 its reverse (124022022245413), we get a palindrome (438564242465834).

The spelling of 314542220220421 in words is "three hundred fourteen trillion, five hundred forty-two billion, two hundred twenty million, two hundred twenty thousand, four hundred twenty-one".