16545230203 has 2 divisors, whose sum is σ = 16545230204. Its totient is φ = 16545230202.

The previous prime is 16545230201. The next prime is 16545230257. The reversal of 16545230203 is 30203254561.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16545230203 - 2¹ = 16545230201 is a prime.

Together with 16545230201, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (16545230201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8272615101 + 8272615102.

It is an arithmetic number, because the mean of its divisors is an integer number (8272615102).

Almost surely, 2^16545230203 is an apocalyptic number.

16545230203 is a deficient number, since it is larger than the sum of its proper divisors (1).

16545230203 is an equidigital number, since it uses as much as digits as its factorization.

16545230203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 16545230203 its reverse (30203254561), we get a palindrome (46748484764).

The spelling of 16545230203 in words is "sixteen billion, five hundred forty-five million, two hundred thirty thousand, two hundred three".