20301343393 has 2 divisors, whose sum is σ = 20301343394. Its totient is φ = 20301343392.

The previous prime is 20301343297. The next prime is 20301343427. The reversal of 20301343393 is 39334310302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14128412769 + 6172930624 = 118863^2 + 78568^2 .

It is a cyclic number.

It is not a de Polignac number, because 20301343393 - 2⁹ = 20301342881 is a prime.

It is not a weakly prime, because it can be changed into another prime (20301341393) 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, 10150671696 + 10150671697.

It is an arithmetic number, because the mean of its divisors is an integer number (10150671697).

Almost surely, 2^20301343393 is an apocalyptic number.

It is an amenable number.

20301343393 is a deficient number, since it is larger than the sum of its proper divisors (1).

20301343393 is an equidigital number, since it uses as much as digits as its factorization.

20301343393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 31.

Adding to 20301343393 its reverse (39334310302), we get a palindrome (59635653695).

The spelling of 20301343393 in words is "twenty billion, three hundred one million, three hundred forty-three thousand, three hundred ninety-three".