20204042443 has 24 divisors (see below), whose sum is σ = 22502578896. Its totient is φ = 18120960000.

The previous prime is 20204042431. The next prime is 20204042501. The reversal of 20204042443 is 34424040202.

It is not a de Polignac number, because 20204042443 - 2⁹ = 20204041931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20204052443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1733371 + ... + 1744987.

It is an arithmetic number, because the mean of its divisors is an integer number (937607454).

Almost surely, 2^20204042443 is an apocalyptic number.

20204042443 is a deficient number, since it is larger than the sum of its proper divisors (2298536453).

20204042443 is a wasteful number, since it uses less digits than its factorization.

20204042443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11935 (or 11922 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 25.

Adding to 20204042443 its reverse (34424040202), we get a palindrome (54628082645).

The spelling of 20204042443 in words is "twenty billion, two hundred four million, forty-two thousand, four hundred forty-three".