13420003 has 2 divisors, whose sum is σ = 13420004. Its totient is φ = 13420002.

The previous prime is 13419949. The next prime is 13420019. The reversal of 13420003 is 30002431.

13420003 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (30002431) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13420003 is a prime.

It is not a weakly prime, because it can be changed into another prime (13420073) 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, 6710001 + 6710002.

It is an arithmetic number, because the mean of its divisors is an integer number (6710002).

Almost surely, 2^13420003 is an apocalyptic number.

13420003 is a deficient number, since it is larger than the sum of its proper divisors (1).

13420003 is an equidigital number, since it uses as much as digits as its factorization.

13420003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 13420003 is about 3663.3322262661. The cubic root of 13420003 is about 237.6389023111.

Adding to 13420003 its reverse (30002431), we get a palindrome (43422434).

The spelling of 13420003 in words is "thirteen million, four hundred twenty thousand, three".