20430343203 has 8 divisors (see below), whose sum is σ = 27257268816. Its totient is φ = 13611823200.

The previous prime is 20430343201. The next prime is 20430343207. The reversal of 20430343203 is 30234303402.

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

It is not a de Polignac number, because 20430343203 - 2¹ = 20430343201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20430343201) 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, 2095728 + ... + 2105453.

It is an arithmetic number, because the mean of its divisors is an integer number (3407158602).

Almost surely, 2^20430343203 is an apocalyptic number.

20430343203 is a deficient number, since it is larger than the sum of its proper divisors (6826925613).

20430343203 is a wasteful number, since it uses less digits than its factorization.

20430343203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4202805.

The product of its (nonzero) digits is 5184, while the sum is 24.

Adding to 20430343203 its reverse (30234303402), we get a palindrome (50664646605).

The spelling of 20430343203 in words is "twenty billion, four hundred thirty million, three hundred forty-three thousand, two hundred three".