20003455043 has 8 divisors (see below), whose sum is σ = 23500562736. Its totient is φ = 16786116000.

The previous prime is 20003455039. The next prime is 20003455081. The reversal of 20003455043 is 34055430002.

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

It is a cyclic number.

It is not a de Polignac number, because 20003455043 - 2² = 20003455039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20003451043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69942008 + ... + 69942293.

It is an arithmetic number, because the mean of its divisors is an integer number (2937570342).

Almost surely, 2^20003455043 is an apocalyptic number.

20003455043 is a deficient number, since it is larger than the sum of its proper divisors (3497107693).

20003455043 is a wasteful number, since it uses less digits than its factorization.

20003455043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139884325.

The product of its (nonzero) digits is 7200, while the sum is 26.

Adding to 20003455043 its reverse (34055430002), we get a palindrome (54058885045).

The spelling of 20003455043 in words is "twenty billion, three million, four hundred fifty-five thousand, forty-three".