13203871 has 2 divisors, whose sum is σ = 13203872. Its totient is φ = 13203870.

The previous prime is 13203859. The next prime is 13203887. The reversal of 13203871 is 17830231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13203871 - 2¹⁷ = 13072799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13203811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6601935 + 6601936.

It is an arithmetic number, because the mean of its divisors is an integer number (6601936).

Almost surely, 2^13203871 is an apocalyptic number.

13203871 is a deficient number, since it is larger than the sum of its proper divisors (1).

13203871 is an equidigital number, since it uses as much as digits as its factorization.

13203871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 13203871 is about 3633.7131147079. The cubic root of 13203871 is about 236.3562499978.

The spelling of 13203871 in words is "thirteen million, two hundred three thousand, eight hundred seventy-one".