20301131321 has 2 divisors, whose sum is σ = 20301131322. Its totient is φ = 20301131320.

The previous prime is 20301131303. The next prime is 20301131329. The reversal of 20301131321 is 12313110302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11197872400 + 9103258921 = 105820^2 + 95411^2 .

It is a cyclic number.

It is not a de Polignac number, because 20301131321 - 2¹⁴ = 20301114937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20301131321.

It is not a weakly prime, because it can be changed into another prime (20301131329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10150565660 + 10150565661.

It is an arithmetic number, because the mean of its divisors is an integer number (10150565661).

Almost surely, 2^20301131321 is an apocalyptic number.

It is an amenable number.

20301131321 is a deficient number, since it is larger than the sum of its proper divisors (1).

20301131321 is an equidigital number, since it uses as much as digits as its factorization.

20301131321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 20301131321 its reverse (12313110302), we get a palindrome (32614241623).

The spelling of 20301131321 in words is "twenty billion, three hundred one million, one hundred thirty-one thousand, three hundred twenty-one".