20433635052361 has 2 divisors, whose sum is σ = 20433635052362. Its totient is φ = 20433635052360.

The previous prime is 20433635052283. The next prime is 20433635052421. The reversal of 20433635052361 is 16325053633402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18123709268025 + 2309925784336 = 4257195^2 + 1519844^2 .

It is a cyclic number.

It is not a de Polignac number, because 20433635052361 - 2¹⁵ = 20433635019593 is a prime.

It is a super-3 number, since 3×20433635052361³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (20433635056361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10216817526180 + 10216817526181.

It is an arithmetic number, because the mean of its divisors is an integer number (10216817526181).

Almost surely, 2^{20433635052361} is an apocalyptic number.

It is an amenable number.

20433635052361 is a deficient number, since it is larger than the sum of its proper divisors (1).

20433635052361 is an equidigital number, since it uses as much as digits as its factorization.

20433635052361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1166400, while the sum is 43.

Adding to 20433635052361 its reverse (16325053633402), we get a palindrome (36758688685763).

The spelling of 20433635052361 in words is "twenty trillion, four hundred thirty-three billion, six hundred thirty-five million, fifty-two thousand, three hundred sixty-one".