20133112133 has 2 divisors, whose sum is σ = 20133112134. Its totient is φ = 20133112132.

The previous prime is 20133112093. The next prime is 20133112187. The reversal of 20133112133 is 33121133102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20105254849 + 27857284 = 141793^2 + 5278^2 .

It is a cyclic number.

It is not a de Polignac number, because 20133112133 - 2²² = 20128917829 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20133117133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10066556066 + 10066556067.

It is an arithmetic number, because the mean of its divisors is an integer number (10066556067).

Almost surely, 2^20133112133 is an apocalyptic number.

It is an amenable number.

20133112133 is a deficient number, since it is larger than the sum of its proper divisors (1).

20133112133 is an equidigital number, since it uses as much as digits as its factorization.

20133112133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 20133112133 its reverse (33121133102), we get a palindrome (53254245235).

The spelling of 20133112133 in words is "twenty billion, one hundred thirty-three million, one hundred twelve thousand, one hundred thirty-three".