13251311 has 2 divisors, whose sum is σ = 13251312. Its totient is φ = 13251310.

The previous prime is 13251263. The next prime is 13251317. The reversal of 13251311 is 11315231.

It is a strong prime.

It is an emirp because it is prime and its reverse (11315231) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13251311 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13251311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13251317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6625655 + 6625656.

It is an arithmetic number, because the mean of its divisors is an integer number (6625656).

Almost surely, 2^13251311 is an apocalyptic number.

13251311 is a deficient number, since it is larger than the sum of its proper divisors (1).

13251311 is an equidigital number, since it uses as much as digits as its factorization.

13251311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90, while the sum is 17.

The square root of 13251311 is about 3640.2350198854. The cubic root of 13251311 is about 236.6389786648.

Adding to 13251311 its reverse (11315231), we get a palindrome (24566542).

The spelling of 13251311 in words is "thirteen million, two hundred fifty-one thousand, three hundred eleven".