20434304203 has 8 divisors (see below), whose sum is σ = 20493195120. Its totient is φ = 20375451360.

The previous prime is 20434304197. The next prime is 20434304239. The reversal of 20434304203 is 30240343402.

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 20434304203 - 2¹³ = 20434296011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20434304273) 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, 1330653 + ... + 1345921.

It is an arithmetic number, because the mean of its divisors is an integer number (2561649390).

Almost surely, 2^20434304203 is an apocalyptic number.

20434304203 is a deficient number, since it is larger than the sum of its proper divisors (58890917).

20434304203 is a wasteful number, since it uses less digits than its factorization.

20434304203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19037.

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 20434304203 its reverse (30240343402), we get a palindrome (50674647605).

The spelling of 20434304203 in words is "twenty billion, four hundred thirty-four million, three hundred four thousand, two hundred three".