13121327 has 2 divisors, whose sum is σ = 13121328. Its totient is φ = 13121326.

The previous prime is 13121309. The next prime is 13121341. The reversal of 13121327 is 72312131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13121327 - 2⁸ = 13121071 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13121299 and 13121308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13121827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6560663 + 6560664.

It is an arithmetic number, because the mean of its divisors is an integer number (6560664).

Almost surely, 2^13121327 is an apocalyptic number.

13121327 is a deficient number, since it is larger than the sum of its proper divisors (1).

13121327 is an equidigital number, since it uses as much as digits as its factorization.

13121327 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 252, while the sum is 20.

The square root of 13121327 is about 3622.3372289173. The cubic root of 13121327 is about 235.8626930391.

Adding to 13121327 its reverse (72312131), we get a palindrome (85433458).

The spelling of 13121327 in words is "thirteen million, one hundred twenty-one thousand, three hundred twenty-seven".