320133212045 has 4 divisors (see below), whose sum is σ = 384159854460. Its totient is φ = 256106569632.

The previous prime is 320133212041. The next prime is 320133212083. The reversal of 320133212045 is 540212331023.

It is a happy number.

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 63219056356 + 256914155689 = 251434^2 + 506867^2 .

It is a cyclic number.

It is not a de Polignac number, because 320133212045 - 2² = 320133212041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320133212041) 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 3 ways as a sum of consecutive naturals, for example, 32013321200 + ... + 32013321209.

It is an arithmetic number, because the mean of its divisors is an integer number (96039963615).

Almost surely, 2^320133212045 is an apocalyptic number.

It is an amenable number.

320133212045 is a deficient number, since it is larger than the sum of its proper divisors (64026642415).

320133212045 is an equidigital number, since it uses as much as digits as its factorization.

320133212045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64026642414.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 320133212045 its reverse (540212331023), we get a palindrome (860345543068).

The spelling of 320133212045 in words is "three hundred twenty billion, one hundred thirty-three million, two hundred twelve thousand, forty-five".