13132811 has 4 divisors (see below), whose sum is σ = 13188000. Its totient is φ = 13077624.

The previous prime is 13132783. The next prime is 13132831. The reversal of 13132811 is 11823131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11823131 = 1741 ⋅6791.

It is a cyclic number.

It is not a de Polignac number, because 13132811 - 2¹⁰ = 13131787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13132831) 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, 27236 + ... + 27713.

It is an arithmetic number, because the mean of its divisors is an integer number (3297000).

Almost surely, 2^13132811 is an apocalyptic number.

13132811 is a deficient number, since it is larger than the sum of its proper divisors (55189).

13132811 is an equidigital number, since it uses as much as digits as its factorization.

13132811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55188.

The product of its digits is 144, while the sum is 20.

The square root of 13132811 is about 3623.9220466230. The cubic root of 13132811 is about 235.9314832698.

Adding to 13132811 its reverse (11823131), we get a palindrome (24955942).

The spelling of 13132811 in words is "thirteen million, one hundred thirty-two thousand, eight hundred eleven".