20204100323 has 4 divisors (see below), whose sum is σ = 22040836728. Its totient is φ = 18367363920.

The previous prime is 20204100317. The next prime is 20204100377. The reversal of 20204100323 is 32300140202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20204100323 - 2⁸ = 20204100067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20204700323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 918368186 + ... + 918368207.

It is an arithmetic number, because the mean of its divisors is an integer number (5510209182).

Almost surely, 2^20204100323 is an apocalyptic number.

20204100323 is a deficient number, since it is larger than the sum of its proper divisors (1836736405).

20204100323 is a wasteful number, since it uses less digits than its factorization.

20204100323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836736404.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 20204100323 its reverse (32300140202), we get a palindrome (52504240525).

The spelling of 20204100323 in words is "twenty billion, two hundred four million, one hundred thousand, three hundred twenty-three".