135303204305 has 4 divisors (see below), whose sum is σ = 162363845172. Its totient is φ = 108242563440.

The previous prime is 135303204287. The next prime is 135303204319. The reversal of 135303204305 is 503402303531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 58596916624 + 76706287681 = 242068^2 + 276959^2 .

It is not a de Polignac number, because 135303204305 - 2¹⁶ = 135303138769 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13530320426 + ... + 13530320435.

It is an arithmetic number, because the mean of its divisors is an integer number (40590961293).

Almost surely, 2^135303204305 is an apocalyptic number.

It is an amenable number.

135303204305 is a deficient number, since it is larger than the sum of its proper divisors (27060640867).

135303204305 is an equidigital number, since it uses as much as digits as its factorization.

135303204305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27060640866.

The product of its (nonzero) digits is 16200, while the sum is 29.

Adding to 135303204305 its reverse (503402303531), we get a palindrome (638705507836).

The spelling of 135303204305 in words is "one hundred thirty-five billion, three hundred three million, two hundred four thousand, three hundred five".