20113203330133 has 2 divisors, whose sum is σ = 20113203330134. Its totient is φ = 20113203330132.

The previous prime is 20113203330113. The next prime is 20113203330139. The reversal of 20113203330133 is 33103330231102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11440372699044 + 8672830631089 = 3382362^2 + 2944967^2 .

It is a cyclic number.

It is not a de Polignac number, because 20113203330133 - 2³³ = 20104613395541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20113203330098 and 20113203330107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20113203330139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056601665066 + 10056601665067.

It is an arithmetic number, because the mean of its divisors is an integer number (10056601665067).

Almost surely, 2^{20113203330133} is an apocalyptic number.

It is an amenable number.

20113203330133 is a deficient number, since it is larger than the sum of its proper divisors (1).

20113203330133 is an equidigital number, since it uses as much as digits as its factorization.

20113203330133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 20113203330133 its reverse (33103330231102), we get a palindrome (53216533561235).

The spelling of 20113203330133 in words is "twenty trillion, one hundred thirteen billion, two hundred three million, three hundred thirty thousand, one hundred thirty-three".