13321129 has 2 divisors, whose sum is σ = 13321130. Its totient is φ = 13321128.

The previous prime is 13321127. The next prime is 13321151. The reversal of 13321129 is 92112331.

13321129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (13321151) can be obtained adding 13321129 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13307904 + 13225 = 3648^2 + 115^2 .

It is a cyclic number.

It is not a de Polignac number, because 13321129 - 2¹ = 13321127 is a prime.

Together with 13321127, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (13321127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6660564 + 6660565.

It is an arithmetic number, because the mean of its divisors is an integer number (6660565).

Almost surely, 2^13321129 is an apocalyptic number.

It is an amenable number.

13321129 is a deficient number, since it is larger than the sum of its proper divisors (1).

13321129 is an equidigital number, since it uses as much as digits as its factorization.

13321129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 324, while the sum is 22.

The square root of 13321129 is about 3649.8121869488. The cubic root of 13321129 is about 237.0538490279.

The spelling of 13321129 in words is "thirteen million, three hundred twenty-one thousand, one hundred twenty-nine".