20053340305 has 8 divisors (see below), whose sum is σ = 24576008832. Its totient is φ = 15701338608.

The previous prime is 20053340287. The next prime is 20053340311. The reversal of 20053340305 is 50304335002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20053340305 - 2²⁵ = 20019785873 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20053340305.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42666447 + ... + 42666916.

It is an arithmetic number, because the mean of its divisors is an integer number (3072001104).

Almost surely, 2^20053340305 is an apocalyptic number.

It is an amenable number.

20053340305 is a deficient number, since it is larger than the sum of its proper divisors (4522668527).

20053340305 is an equidigital number, since it uses as much as digits as its factorization.

20053340305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85333415.

The product of its (nonzero) digits is 5400, while the sum is 25.

Adding to 20053340305 its reverse (50304335002), we get a palindrome (70357675307).

The spelling of 20053340305 in words is "twenty billion, fifty-three million, three hundred forty thousand, three hundred five".