20315422420305 has 16 divisors (see below), whose sum is σ = 32505585418944. Its totient is φ = 10834588775360.

The previous prime is 20315422420289. The next prime is 20315422420393. The reversal of 20315422420305 is 50302422451302.

It is not a de Polignac number, because 20315422420305 - 2⁴ = 20315422420289 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18394434 + ... + 19467563.

It is an arithmetic number, because the mean of its divisors is an integer number (2031599088684).

Almost surely, 2^{20315422420305} is an apocalyptic number.

It is an amenable number.

20315422420305 is a deficient number, since it is larger than the sum of its proper divisors (12190162998639).

20315422420305 is a wasteful number, since it uses less digits than its factorization.

20315422420305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37897776.

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

Adding to 20315422420305 its reverse (50302422451302), we get a palindrome (70617844871607).

The spelling of 20315422420305 in words is "twenty trillion, three hundred fifteen billion, four hundred twenty-two million, four hundred twenty thousand, three hundred five".