20761039133 has 2 divisors, whose sum is σ = 20761039134. Its totient is φ = 20761039132.

The previous prime is 20761039099. The next prime is 20761039193. The reversal of 20761039133 is 33193016702.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12038039524 + 8722999609 = 109718^2 + 93397^2 .

It is a cyclic number.

It is not a de Polignac number, because 20761039133 - 2⁶ = 20761039069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20761039093 and 20761039102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20761039193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10380519566 + 10380519567.

It is an arithmetic number, because the mean of its divisors is an integer number (10380519567).

Almost surely, 2^20761039133 is an apocalyptic number.

It is an amenable number.

20761039133 is a deficient number, since it is larger than the sum of its proper divisors (1).

20761039133 is an equidigital number, since it uses as much as digits as its factorization.

20761039133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 35.

The spelling of 20761039133 in words is "twenty billion, seven hundred sixty-one million, thirty-nine thousand, one hundred thirty-three".