20204222423 has 16 divisors (see below), whose sum is σ = 25544471040. Its totient is φ = 15521805600.

The previous prime is 20204222417. The next prime is 20204222443. The reversal of 20204222423 is 32422240202.

It is a de Polignac number, because none of the positive numbers 2^k-20204222423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20204222443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1842368 + ... + 1853301.

It is an arithmetic number, because the mean of its divisors is an integer number (1596529440).

Almost surely, 2^20204222423 is an apocalyptic number.

20204222423 is a deficient number, since it is larger than the sum of its proper divisors (5340248617).

20204222423 is a wasteful number, since it uses less digits than its factorization.

20204222423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3695758.

The product of its (nonzero) digits is 3072, while the sum is 23.

Adding to 20204222423 its reverse (32422240202), we get a palindrome (52626462625).

The spelling of 20204222423 in words is "twenty billion, two hundred four million, two hundred twenty-two thousand, four hundred twenty-three".