20535235333 has 2 divisors, whose sum is σ = 20535235334. Its totient is φ = 20535235332.

The previous prime is 20535235297. The next prime is 20535235367. The reversal of 20535235333 is 33353253502.

It is an a-pointer prime, because the next prime (20535235367) can be obtained adding 20535235333 to its sum of digits (34).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20382416289 + 152819044 = 142767^2 + 12362^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20535235333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20535235433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10267617666 + 10267617667.

It is an arithmetic number, because the mean of its divisors is an integer number (10267617667).

Almost surely, 2^20535235333 is an apocalyptic number.

It is an amenable number.

20535235333 is a deficient number, since it is larger than the sum of its proper divisors (1).

20535235333 is an equidigital number, since it uses as much as digits as its factorization.

20535235333 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 121500, while the sum is 34.

Adding to 20535235333 its reverse (33353253502), we get a palindrome (53888488835).

The spelling of 20535235333 in words is "twenty billion, five hundred thirty-five million, two hundred thirty-five thousand, three hundred thirty-three".