13000811 has 8 divisors (see below), whose sum is σ = 13707264. Its totient is φ = 12312360.

The previous prime is 13000781. The next prime is 13000829. The reversal of 13000811 is 11800031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13000811 - 2¹⁴ = 12984427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13000831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3005 + ... + 5918.

It is an arithmetic number, because the mean of its divisors is an integer number (1713408).

Almost surely, 2^13000811 is an apocalyptic number.

13000811 is a deficient number, since it is larger than the sum of its proper divisors (706453).

13000811 is an equidigital number, since it uses as much as digits as its factorization.

13000811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9001.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 13000811 is about 3605.6637391748. The cubic root of 13000811 is about 235.1383582407.

Adding to 13000811 its reverse (11800031), we get a palindrome (24800842).

The spelling of 13000811 in words is "thirteen million, eight hundred eleven", and thus it is an aban number.