20004303313 has 2 divisors, whose sum is σ = 20004303314. Its totient is φ = 20004303312.

The previous prime is 20004303301. The next prime is 20004303323. The reversal of 20004303313 is 31330340002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19995939649 + 8363664 = 141407^2 + 2892^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20004303313 is a prime.

It is not a weakly prime, because it can be changed into another prime (20004303323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10002151656 + 10002151657.

It is an arithmetic number, because the mean of its divisors is an integer number (10002151657).

Almost surely, 2^20004303313 is an apocalyptic number.

It is an amenable number.

20004303313 is a deficient number, since it is larger than the sum of its proper divisors (1).

20004303313 is an equidigital number, since it uses as much as digits as its factorization.

20004303313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 20004303313 its reverse (31330340002), we get a palindrome (51334643315).

The spelling of 20004303313 in words is "twenty billion, four million, three hundred three thousand, three hundred thirteen".