13287311 has 2 divisors, whose sum is σ = 13287312. Its totient is φ = 13287310.

The previous prime is 13287293. The next prime is 13287317. The reversal of 13287311 is 11378231.

It is a strong prime.

It is an emirp because it is prime and its reverse (11378231) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13287311 is a prime.

It is a super-2 number, since 2×13287311² = 353105267221442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13287317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6643655 + 6643656.

It is an arithmetic number, because the mean of its divisors is an integer number (6643656).

Almost surely, 2^13287311 is an apocalyptic number.

13287311 is a deficient number, since it is larger than the sum of its proper divisors (1).

13287311 is an equidigital number, since it uses as much as digits as its factorization.

13287311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1008, while the sum is 26.

The square root of 13287311 is about 3645.1764017671. The cubic root of 13287311 is about 236.8530782432.

The spelling of 13287311 in words is "thirteen million, two hundred eighty-seven thousand, three hundred eleven".