103330020321221 has 2 divisors, whose sum is σ = 103330020321222. Its totient is φ = 103330020321220.

The previous prime is 103330020321217. The next prime is 103330020321233. The reversal of 103330020321221 is 122123020033301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69812057440321 + 33517962880900 = 8355361^2 + 5789470^2 .

It is a cyclic number.

It is not a de Polignac number, because 103330020321221 - 2² = 103330020321217 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103330020921221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51665010160610 + 51665010160611.

It is an arithmetic number, because the mean of its divisors is an integer number (51665010160611).

Almost surely, 2^{103330020321221} is an apocalyptic number.

It is an amenable number.

103330020321221 is a deficient number, since it is larger than the sum of its proper divisors (1).

103330020321221 is an equidigital number, since it uses as much as digits as its factorization.

103330020321221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 103330020321221 its reverse (122123020033301), we get a palindrome (225453040354522).

The spelling of 103330020321221 in words is "one hundred three trillion, three hundred thirty billion, twenty million, three hundred twenty-one thousand, two hundred twenty-one".