20126330103493 has 2 divisors, whose sum is σ = 20126330103494. Its totient is φ = 20126330103492.

The previous prime is 20126330103437. The next prime is 20126330103499. The reversal of 20126330103493 is 39430103362102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17639722801089 + 2486607302404 = 4199967^2 + 1576898^2 .

It is a cyclic number.

It is not a de Polignac number, because 20126330103493 - 2¹³ = 20126330095301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20126330103499) 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, 10063165051746 + 10063165051747.

It is an arithmetic number, because the mean of its divisors is an integer number (10063165051747).

Almost surely, 2^{20126330103493} is an apocalyptic number.

It is an amenable number.

20126330103493 is a deficient number, since it is larger than the sum of its proper divisors (1).

20126330103493 is an equidigital number, since it uses as much as digits as its factorization.

20126330103493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 37.

Adding to 20126330103493 its reverse (39430103362102), we get a palindrome (59556433465595).

The spelling of 20126330103493 in words is "twenty trillion, one hundred twenty-six billion, three hundred thirty million, one hundred three thousand, four hundred ninety-three".