13103999 has 2 divisors, whose sum is σ = 13104000. Its totient is φ = 13103998.

The previous prime is 13103971. The next prime is 13104017. The reversal of 13103999 is 99930131.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13103999 - 2⁸ = 13103743 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13103599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6551999 + 6552000.

It is an arithmetic number, because the mean of its divisors is an integer number (6552000).

Almost surely, 2^13103999 is an apocalyptic number.

13103999 is a deficient number, since it is larger than the sum of its proper divisors (1).

13103999 is an equidigital number, since it uses as much as digits as its factorization.

13103999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6561, while the sum is 35.

The square root of 13103999 is about 3619.9446128359. The cubic root of 13103999 is about 235.7588206901.

The spelling of 13103999 in words is "thirteen million, one hundred three thousand, nine hundred ninety-nine".