20101332133 has 2 divisors, whose sum is σ = 20101332134. Its totient is φ = 20101332132.

The previous prime is 20101332127. The next prime is 20101332157. The reversal of 20101332133 is 33123310102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17428752324 + 2672579809 = 132018^2 + 51697^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20101332133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20101332133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20101332233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10050666066 + 10050666067.

It is an arithmetic number, because the mean of its divisors is an integer number (10050666067).

Almost surely, 2^20101332133 is an apocalyptic number.

It is an amenable number.

20101332133 is a deficient number, since it is larger than the sum of its proper divisors (1).

20101332133 is an equidigital number, since it uses as much as digits as its factorization.

20101332133 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 19.

Adding to 20101332133 its reverse (33123310102), we get a palindrome (53224642235).

The spelling of 20101332133 in words is "twenty billion, one hundred one million, three hundred thirty-two thousand, one hundred thirty-three".