20301130220321 has 2 divisors, whose sum is σ = 20301130220322. Its totient is φ = 20301130220320.

The previous prime is 20301130220303. The next prime is 20301130220351. The reversal of 20301130220321 is 12302203110302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12928058904721 + 7373071315600 = 3595561^2 + 2715340^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20301130220321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20301130220293 and 20301130220302.

It is not a weakly prime, because it can be changed into another prime (20301130220351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10150565110160 + 10150565110161.

It is an arithmetic number, because the mean of its divisors is an integer number (10150565110161).

Almost surely, 2^{20301130220321} is an apocalyptic number.

It is an amenable number.

20301130220321 is a deficient number, since it is larger than the sum of its proper divisors (1).

20301130220321 is an equidigital number, since it uses as much as digits as its factorization.

20301130220321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20301130220321 its reverse (12302203110302), we get a palindrome (32603333330623).

The spelling of 20301130220321 in words is "twenty trillion, three hundred one billion, one hundred thirty million, two hundred twenty thousand, three hundred twenty-one".