120503030321 has 2 divisors, whose sum is σ = 120503030322. Its totient is φ = 120503030320.

The previous prime is 120503030287. The next prime is 120503030357. The reversal of 120503030321 is 123030305021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94617760000 + 25885270321 = 307600^2 + 160889^2 .

It is a cyclic number.

It is not a de Polignac number, because 120503030321 - 2³⁰ = 119429288497 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120503030293 and 120503030302.

It is not a weakly prime, because it can be changed into another prime (120503030521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60251515160 + 60251515161.

It is an arithmetic number, because the mean of its divisors is an integer number (60251515161).

Almost surely, 2^120503030321 is an apocalyptic number.

It is an amenable number.

120503030321 is a deficient number, since it is larger than the sum of its proper divisors (1).

120503030321 is an equidigital number, since it uses as much as digits as its factorization.

120503030321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 20.

Adding to 120503030321 its reverse (123030305021), we get a palindrome (243533335342).

The spelling of 120503030321 in words is "one hundred twenty billion, five hundred three million, thirty thousand, three hundred twenty-one".