20424303313 has 2 divisors, whose sum is σ = 20424303314. Its totient is φ = 20424303312.

The previous prime is 20424303293. The next prime is 20424303331. The reversal of 20424303313 is 31330342402.

Together with next prime (20424303331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13278644289 + 7145659024 = 115233^2 + 84532^2 .

It is a cyclic number.

It is not a de Polignac number, because 20424303313 - 2¹³ = 20424295121 is a prime.

It is not a weakly prime, because it can be changed into another prime (20424303113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10212151656 + 10212151657.

It is an arithmetic number, because the mean of its divisors is an integer number (10212151657).

Almost surely, 2^20424303313 is an apocalyptic number.

It is an amenable number.

20424303313 is a deficient number, since it is larger than the sum of its proper divisors (1).

20424303313 is an equidigital number, since it uses as much as digits as its factorization.

20424303313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 20424303313 its reverse (31330342402), we get a palindrome (51754645715).

The spelling of 20424303313 in words is "twenty billion, four hundred twenty-four million, three hundred three thousand, three hundred thirteen".