20535322411 has 2 divisors, whose sum is σ = 20535322412. Its totient is φ = 20535322410.

The previous prime is 20535322373. The next prime is 20535322427. The reversal of 20535322411 is 11422353502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20535322411 - 2¹¹ = 20535320363 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20535322411.

It is not a weakly prime, because it can be changed into another prime (20535322711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10267661205 + 10267661206.

It is an arithmetic number, because the mean of its divisors is an integer number (10267661206).

Almost surely, 2^20535322411 is an apocalyptic number.

20535322411 is a deficient number, since it is larger than the sum of its proper divisors (1).

20535322411 is an equidigital number, since it uses as much as digits as its factorization.

20535322411 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 20535322411 its reverse (11422353502), we get a palindrome (31957675913).

The spelling of 20535322411 in words is "twenty billion, five hundred thirty-five million, three hundred twenty-two thousand, four hundred eleven".