20535340341 has 4 divisors (see below), whose sum is σ = 27380453792. Its totient is φ = 13690226892.

The previous prime is 20535340333. The next prime is 20535340369. The reversal of 20535340341 is 14304353502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20535340341 - 2³ = 20535340333 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20535340299 and 20535340308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20535320341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3422556721 + ... + 3422556726.

It is an arithmetic number, because the mean of its divisors is an integer number (6845113448).

Almost surely, 2^20535340341 is an apocalyptic number.

It is an amenable number.

20535340341 is a deficient number, since it is larger than the sum of its proper divisors (6845113451).

20535340341 is an equidigital number, since it uses as much as digits as its factorization.

20535340341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6845113450.

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 20535340341 its reverse (14304353502), we get a palindrome (34839693843).

The spelling of 20535340341 in words is "twenty billion, five hundred thirty-five million, three hundred forty thousand, three hundred forty-one".