20354324631305 has 16 divisors (see below), whose sum is σ = 27914846081664. Its totient is φ = 13957079310720.

The previous prime is 20354324631301. The next prime is 20354324631367. The reversal of 20354324631305 is 50313642345302.

It is not a de Polignac number, because 20354324631305 - 2² = 20354324631301 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20354324631301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 664091 + ... + 6414800.

It is an arithmetic number, because the mean of its divisors is an integer number (1744677880104).

Almost surely, 2^{20354324631305} is an apocalyptic number.

It is an amenable number.

20354324631305 is a deficient number, since it is larger than the sum of its proper divisors (7560521450359).

20354324631305 is an equidigital number, since it uses as much as digits as its factorization.

20354324631305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7161056.

The product of its (nonzero) digits is 777600, while the sum is 41.

Adding to 20354324631305 its reverse (50313642345302), we get a palindrome (70667966976607).

The spelling of 20354324631305 in words is "twenty trillion, three hundred fifty-four billion, three hundred twenty-four million, six hundred thirty-one thousand, three hundred five".