320388545133 has 12 divisors (see below), whose sum is σ = 487140478240. Its totient is φ = 202350659976.

The previous prime is 320388545041. The next prime is 320388545149. The reversal of 320388545133 is 331545883023.

320388545133 is a `hidden beast` number, since 3 + 2 + 0 + 3 + 88 + 54 + 513 + 3 = 666.

It is not a de Polignac number, because 320388545133 - 2⁸ = 320388544877 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320388545173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 936808441 + ... + 936808782.

Almost surely, 2^320388545133 is an apocalyptic number.

It is an amenable number.

320388545133 is a deficient number, since it is larger than the sum of its proper divisors (166751933107).

320388545133 is a wasteful number, since it uses less digits than its factorization.

320388545133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1873617248 (or 1873617245 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 320388545133 in words is "three hundred twenty billion, three hundred eighty-eight million, five hundred forty-five thousand, one hundred thirty-three".