20004203122 has 8 divisors (see below), whose sum is σ = 30019042476. Its totient is φ = 9997855632.

The previous prime is 20004203111. The next prime is 20004203189. The reversal of 20004203122 is 22130240002.

It can be written as a sum of positive squares in 2 ways, for example, as 14967320281 + 5036882841 = 122341^2 + 70971^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20004203096 and 20004203105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2117073 + ... + 2126500.

Almost surely, 2^20004203122 is an apocalyptic number.

20004203122 is a deficient number, since it is larger than the sum of its proper divisors (10014839354).

20004203122 is a wasteful number, since it uses less digits than its factorization.

20004203122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4245932.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 20004203122 its reverse (22130240002), we get a palindrome (42134443124).

The spelling of 20004203122 in words is "twenty billion, four million, two hundred three thousand, one hundred twenty-two".