103313221220161 has 2 divisors, whose sum is σ = 103313221220162. Its totient is φ = 103313221220160.

The previous prime is 103313221220101. The next prime is 103313221220249. The reversal of 103313221220161 is 161022122313301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68615643303936 + 34697577916225 = 8283456^2 + 5890465^2 .

It is an emirp because it is prime and its reverse (161022122313301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 103313221220161 - 2¹⁹ = 103313220695873 is a prime.

It is a super-5 number, since 5×103313221220161⁵ (a number of 71 digits) contains 55555 as substring.

It is not a weakly prime, because it can be changed into another prime (103313221220101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51656610610080 + 51656610610081.

It is an arithmetic number, because the mean of its divisors is an integer number (51656610610081).

Almost surely, 2^{103313221220161} is an apocalyptic number.

It is an amenable number.

103313221220161 is a deficient number, since it is larger than the sum of its proper divisors (1).

103313221220161 is an equidigital number, since it uses as much as digits as its factorization.

103313221220161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

Adding to 103313221220161 its reverse (161022122313301), we get a palindrome (264335343533462).

The spelling of 103313221220161 in words is "one hundred three trillion, three hundred thirteen billion, two hundred twenty-one million, two hundred twenty thousand, one hundred sixty-one".