20432203202305 has 16 divisors (see below), whose sum is σ = 24748440940224. Its totient is φ = 16192572533440.

The previous prime is 20432203202303. The next prime is 20432203202381. The reversal of 20432203202305 is 50320230223402.

It is not a de Polignac number, because 20432203202305 - 2¹ = 20432203202303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20432203202303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20693394 + ... + 21658276.

It is an arithmetic number, because the mean of its divisors is an integer number (1546777558764).

Almost surely, 2^{20432203202305} is an apocalyptic number.

It is an amenable number.

20432203202305 is a deficient number, since it is larger than the sum of its proper divisors (4316237737919).

20432203202305 is a wasteful number, since it uses less digits than its factorization.

20432203202305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004576.

The product of its (nonzero) digits is 17280, while the sum is 28.

Adding to 20432203202305 its reverse (50320230223402), we get a palindrome (70752433425707).

The spelling of 20432203202305 in words is "twenty trillion, four hundred thirty-two billion, two hundred three million, two hundred two thousand, three hundred five".