13210427 has 2 divisors, whose sum is σ = 13210428. Its totient is φ = 13210426.

The previous prime is 13210423. The next prime is 13210447. The reversal of 13210427 is 72401231.

It is an a-pointer prime, because the next prime (13210447) can be obtained adding 13210427 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13210427 - 2² = 13210423 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 13210399 and 13210408.

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 (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6605213 + 6605214.

It is an arithmetic number, because the mean of its divisors is an integer number (6605214).

Almost surely, 2^13210427 is an apocalyptic number.

13210427 is a deficient number, since it is larger than the sum of its proper divisors (1).

13210427 is an equidigital number, since it uses as much as digits as its factorization.

13210427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 13210427 is about 3634.6151102971. The cubic root of 13210427 is about 236.3953621436.

Adding to 13210427 its reverse (72401231), we get a palindrome (85611658).

The spelling of 13210427 in words is "thirteen million, two hundred ten thousand, four hundred twenty-seven".