135321103 has 2 divisors, whose sum is σ = 135321104. Its totient is φ = 135321102.

The previous prime is 135321079. The next prime is 135321149. The reversal of 135321103 is 301123531.

It is a weak prime.

It is an emirp because it is prime and its reverse (301123531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135321103 - 2²⁵ = 101766671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135324103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67660551 + 67660552.

It is an arithmetic number, because the mean of its divisors is an integer number (67660552).

Almost surely, 2^135321103 is an apocalyptic number.

135321103 is a deficient number, since it is larger than the sum of its proper divisors (1).

135321103 is an equidigital number, since it uses as much as digits as its factorization.

135321103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 135321103 is about 11632.7599046830. The cubic root of 135321103 is about 513.3991867035.

Adding to 135321103 its reverse (301123531), we get a palindrome (436444634).

It can be divided in two parts, 135321 and 103, that added together give a square (135424 = 368²).

The spelling of 135321103 in words is "one hundred thirty-five million, three hundred twenty-one thousand, one hundred three".