135228324321 has 24 divisors (see below), whose sum is σ = 207975250080. Its totient is φ = 84375110016.

The previous prime is 135228324317. The next prime is 135228324331. The reversal of 135228324321 is 123423822531.

135228324321 is a `hidden beast` number, since 1 + 3 + 5 + 2 + 2 + 8 + 324 + 321 = 666.

It is not a de Polignac number, because 135228324321 - 2² = 135228324317 is a prime.

It is a super-2 number, since 2×135228324321² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135228324331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2441455 + ... + 2496228.

It is an arithmetic number, because the mean of its divisors is an integer number (8665635420).

Almost surely, 2^135228324321 is an apocalyptic number.

It is an amenable number.

135228324321 is a deficient number, since it is larger than the sum of its proper divisors (72746925759).

135228324321 is a wasteful number, since it uses less digits than its factorization.

135228324321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4937885 (or 4937882 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The spelling of 135228324321 in words is "one hundred thirty-five billion, two hundred twenty-eight million, three hundred twenty-four thousand, three hundred twenty-one".