20620204323 has 32 divisors (see below), whose sum is σ = 28183334400. Its totient is φ = 13406964480.

The previous prime is 20620204313. The next prime is 20620204331. The reversal of 20620204323 is 32340202602.

It is a happy number.

It is not a de Polignac number, because 20620204323 - 2⁵ = 20620204291 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20620204293 and 20620204302.

It is not an unprimeable number, because it can be changed into a prime (20620204313) 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 31 ways as a sum of consecutive naturals, for example, 8088253 + ... + 8090801.

It is an arithmetic number, because the mean of its divisors is an integer number (880729200).

Almost surely, 2^20620204323 is an apocalyptic number.

20620204323 is a deficient number, since it is larger than the sum of its proper divisors (7563130077).

20620204323 is a wasteful number, since it uses less digits than its factorization.

20620204323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3019.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 20620204323 its reverse (32340202602), we get a palindrome (52960406925).

The spelling of 20620204323 in words is "twenty billion, six hundred twenty million, two hundred four thousand, three hundred twenty-three".