320323304025 has 96 divisors (see below), whose sum is σ = 625617457920. Its totient is φ = 160327664640.

The previous prime is 320323303987. The next prime is 320323304029. The reversal of 320323304025 is 520403323023.

320323304025 is a `hidden beast` number, since 3 + 20 + 3 + 233 + 0 + 402 + 5 = 666.

It is not a de Polignac number, because 320323304025 - 2¹⁶ = 320323238489 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 320323304025.

It is not an unprimeable number, because it can be changed into a prime (320323304029) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 628177 + ... + 1017473.

It is an arithmetic number, because the mean of its divisors is an integer number (6516848520).

Almost surely, 2^320323304025 is an apocalyptic number.

It is an amenable number.

320323304025 is a deficient number, since it is larger than the sum of its proper divisors (305294153895).

320323304025 is a wasteful number, since it uses less digits than its factorization.

320323304025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389392 (or 389381 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 27.

Adding to 320323304025 its reverse (520403323023), we get a palindrome (840726627048).

The spelling of 320323304025 in words is "three hundred twenty billion, three hundred twenty-three million, three hundred four thousand, twenty-five".