13680203 has 2 divisors, whose sum is σ = 13680204. Its totient is φ = 13680202.

The previous prime is 13680187. The next prime is 13680217. The reversal of 13680203 is 30208631.

It is a strong prime.

It is an emirp because it is prime and its reverse (30208631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13680203 - 2⁴ = 13680187 is a prime.

It is not a weakly prime, because it can be changed into another prime (13280203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6840101 + 6840102.

It is an arithmetic number, because the mean of its divisors is an integer number (6840102).

Almost surely, 2^13680203 is an apocalyptic number.

13680203 is a deficient number, since it is larger than the sum of its proper divisors (1).

13680203 is an equidigital number, since it uses as much as digits as its factorization.

13680203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 13680203 is about 3698.6758441367. The cubic root of 13680203 is about 239.1649392783.

Adding to 13680203 its reverse (30208631), we get a palindrome (43888834).

The spelling of 13680203 in words is "thirteen million, six hundred eighty thousand, two hundred three".