545303021323 has 4 divisors (see below), whose sum is σ = 574003180360. Its totient is φ = 516602862288.

The previous prime is 545303021309. The next prime is 545303021327. The reversal of 545303021323 is 323120303545.

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

It is a cyclic number.

It is not a de Polignac number, because 545303021323 - 2³⁷ = 407864067851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545303021327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14350079490 + ... + 14350079527.

It is an arithmetic number, because the mean of its divisors is an integer number (143500795090).

Almost surely, 2^545303021323 is an apocalyptic number.

545303021323 is a deficient number, since it is larger than the sum of its proper divisors (28700159037).

545303021323 is a wasteful number, since it uses less digits than its factorization.

545303021323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28700159036.

The product of its (nonzero) digits is 32400, while the sum is 31.

Adding to 545303021323 its reverse (323120303545), we get a palindrome (868423324868).

The spelling of 545303021323 in words is "five hundred forty-five billion, three hundred three million, twenty-one thousand, three hundred twenty-three".