20000053103993 has 2 divisors, whose sum is σ = 20000053103994. Its totient is φ = 20000053103992.

The previous prime is 20000053103981. The next prime is 20000053104013. The reversal of 20000053103993 is 39930135000002.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19999928848384 + 124255609 = 4472128^2 + 11147^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20000053103993 is a prime.

It is not a weakly prime, because it can be changed into another prime (20000053103923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000026551996 + 10000026551997.

It is an arithmetic number, because the mean of its divisors is an integer number (10000026551997).

Almost surely, 2^{20000053103993} is an apocalyptic number.

It is an amenable number.

20000053103993 is a deficient number, since it is larger than the sum of its proper divisors (1).

20000053103993 is an equidigital number, since it uses as much as digits as its factorization.

20000053103993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21870, while the sum is 35.

Adding to 20000053103993 its reverse (39930135000002), we get a palindrome (59930188103995).

The spelling of 20000053103993 in words is "twenty trillion, fifty-three million, one hundred three thousand, nine hundred ninety-three".