20041603115263 has 2 divisors, whose sum is σ = 20041603115264. Its totient is φ = 20041603115262.

The previous prime is 20041603115251. The next prime is 20041603115291. The reversal of 20041603115263 is 36251130614002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20041603115263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20041603115213) 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, 10020801557631 + 10020801557632.

It is an arithmetic number, because the mean of its divisors is an integer number (10020801557632).

Almost surely, 2^{20041603115263} is an apocalyptic number.

20041603115263 is a deficient number, since it is larger than the sum of its proper divisors (1).

20041603115263 is an equidigital number, since it uses as much as digits as its factorization.

20041603115263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 34.

Adding to 20041603115263 its reverse (36251130614002), we get a palindrome (56292733729265).

The spelling of 20041603115263 in words is "twenty trillion, forty-one billion, six hundred three million, one hundred fifteen thousand, two hundred sixty-three".