20535323441 has 2 divisors, whose sum is σ = 20535323442. Its totient is φ = 20535323440.

The previous prime is 20535323407. The next prime is 20535323453. The reversal of 20535323441 is 14432353502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20528871841 + 6451600 = 143279^2 + 2540^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20535323441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20535323398 and 20535323407.

It is not a weakly prime, because it can be changed into another prime (20535323141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10267661720 + 10267661721.

It is an arithmetic number, because the mean of its divisors is an integer number (10267661721).

Almost surely, 2^20535323441 is an apocalyptic number.

It is an amenable number.

20535323441 is a deficient number, since it is larger than the sum of its proper divisors (1).

20535323441 is an equidigital number, since it uses as much as digits as its factorization.

20535323441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 20535323441 its reverse (14432353502), we get a palindrome (34967676943).

The spelling of 20535323441 in words is "twenty billion, five hundred thirty-five million, three hundred twenty-three thousand, four hundred forty-one".