103122020321 has 2 divisors, whose sum is σ = 103122020322. Its totient is φ = 103122020320.

The previous prime is 103122020299. The next prime is 103122020357. The reversal of 103122020321 is 123020221301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103066681600 + 55338721 = 321040^2 + 7439^2 .

It is an emirp because it is prime and its reverse (123020221301) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103122020321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 103122020321.

It is not a weakly prime, because it can be changed into another prime (103122020381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51561010160 + 51561010161.

It is an arithmetic number, because the mean of its divisors is an integer number (51561010161).

Almost surely, 2^103122020321 is an apocalyptic number.

It is an amenable number.

103122020321 is a deficient number, since it is larger than the sum of its proper divisors (1).

103122020321 is an equidigital number, since it uses as much as digits as its factorization.

103122020321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 103122020321 its reverse (123020221301), we get a palindrome (226142241622).

The spelling of 103122020321 in words is "one hundred three billion, one hundred twenty-two million, twenty thousand, three hundred twenty-one".