20535443241 has 16 divisors (see below), whose sum is σ = 27501465600. Its totient is φ = 13629952640.

The previous prime is 20535443207. The next prime is 20535443261. The reversal of 20535443241 is 14234453502.

It is a cyclic number.

It is not a de Polignac number, because 20535443241 - 2⁹ = 20535442729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20535443261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 910936 + ... + 933206.

It is an arithmetic number, because the mean of its divisors is an integer number (1718841600).

Almost surely, 2^20535443241 is an apocalyptic number.

It is an amenable number.

20535443241 is a deficient number, since it is larger than the sum of its proper divisors (6966022359).

20535443241 is a wasteful number, since it uses less digits than its factorization.

20535443241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23616.

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 20535443241 its reverse (14234453502), we get a palindrome (34769896743).

The spelling of 20535443241 in words is "twenty billion, five hundred thirty-five million, four hundred forty-three thousand, two hundred forty-one".