13103963 has 4 divisors (see below), whose sum is σ = 13125048. Its totient is φ = 13082880.

The previous prime is 13103953. The next prime is 13103971. The reversal of 13103963 is 36930131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13103963 - 2⁸ = 13103707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13103933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9581 + ... + 10862.

It is an arithmetic number, because the mean of its divisors is an integer number (3281262).

Almost surely, 2^13103963 is an apocalyptic number.

13103963 is a deficient number, since it is larger than the sum of its proper divisors (21085).

13103963 is an equidigital number, since it uses as much as digits as its factorization.

13103963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21084.

The product of its (nonzero) digits is 1458, while the sum is 26.

The square root of 13103963 is about 3619.9396403808. The cubic root of 13103963 is about 235.7586047935.

The spelling of 13103963 in words is "thirteen million, one hundred three thousand, nine hundred sixty-three".