20013333130121 has 2 divisors, whose sum is σ = 20013333130122. Its totient is φ = 20013333130120.

The previous prime is 20013333130019. The next prime is 20013333130129. The reversal of 20013333130121 is 12103133331002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17008934907721 + 3004398222400 = 4124189^2 + 1733320^2 .

It is a cyclic number.

It is not a de Polignac number, because 20013333130121 - 2¹⁴ = 20013333113737 is a prime.

It is not a weakly prime, because it can be changed into another prime (20013333130129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006666565060 + 10006666565061.

It is an arithmetic number, because the mean of its divisors is an integer number (10006666565061).

Almost surely, 2^{20013333130121} is an apocalyptic number.

It is an amenable number.

20013333130121 is a deficient number, since it is larger than the sum of its proper divisors (1).

20013333130121 is an equidigital number, since it uses as much as digits as its factorization.

20013333130121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 20013333130121 its reverse (12103133331002), we get a palindrome (32116466461123).

The spelling of 20013333130121 in words is "twenty trillion, thirteen billion, three hundred thirty-three million, one hundred thirty thousand, one hundred twenty-one".