13210403 has 2 divisors, whose sum is σ = 13210404. Its totient is φ = 13210402.

The previous prime is 13210391. The next prime is 13210423. The reversal of 13210403 is 30401231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13210403 - 2⁴ = 13210387 is a prime.

It is not a weakly prime, because it can be changed into another prime (13210423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6605201 + 6605202.

It is an arithmetic number, because the mean of its divisors is an integer number (6605202).

Almost surely, 2^13210403 is an apocalyptic number.

13210403 is a deficient number, since it is larger than the sum of its proper divisors (1).

13210403 is an equidigital number, since it uses as much as digits as its factorization.

13210403 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 14.

The square root of 13210403 is about 3634.6118087080. The cubic root of 13210403 is about 236.3952189867.

Adding to 13210403 its reverse (30401231), we get a palindrome (43611634).

The spelling of 13210403 in words is "thirteen million, two hundred ten thousand, four hundred three".