13056003 has 12 divisors (see below), whose sum is σ = 19509360. Its totient is φ = 8403696.

The previous prime is 13055993. The next prime is 13056011. The reversal of 13056003 is 30065031.

It is not a de Polignac number, because 13056003 - 2⁸ = 13055747 is a prime.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (13056023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24751 + ... + 25272.

It is an arithmetic number, because the mean of its divisors is an integer number (1625780).

Almost surely, 2^13056003 is an apocalyptic number.

13056003 is a deficient number, since it is larger than the sum of its proper divisors (6453357).

13056003 is a wasteful number, since it uses less digits than its factorization.

13056003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50058 (or 50055 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 13056003 is about 3613.3091481355. The cubic root of 13056003 is about 235.4706307108.

Subtracting 13056003 from its reverse (30065031), we obtain a triangular number (17009028 = T₅₈₃₂).

The spelling of 13056003 in words is "thirteen million, fifty-six thousand, three".