20003450243 has 8 divisors (see below), whose sum is σ = 22869340512. Its totient is φ = 17139623616.

The previous prime is 20003450237. The next prime is 20003450273. The reversal of 20003450243 is 34205430002.

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 20003450243 - 2¹⁴ = 20003433859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20003450273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 495080 + ... + 533957.

It is an arithmetic number, because the mean of its divisors is an integer number (2858667564).

Almost surely, 2^20003450243 is an apocalyptic number.

20003450243 is a deficient number, since it is larger than the sum of its proper divisors (2865890269).

20003450243 is a wasteful number, since it uses less digits than its factorization.

20003450243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031821.

The product of its (nonzero) digits is 2880, while the sum is 23.

Adding to 20003450243 its reverse (34205430002), we get a palindrome (54208880245).

The spelling of 20003450243 in words is "twenty billion, three million, four hundred fifty thousand, two hundred forty-three".