320203323 has 12 divisors (see below), whose sum is σ = 504562968. Its totient is φ = 194062560.

The previous prime is 320203321. The next prime is 320203337. The reversal of 320203323 is 323302023.

320203323 is a `hidden beast` number, since 320 + 20 + 3 + 323 = 666.

It is not a de Polignac number, because 320203323 - 2¹ = 320203321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 320203296 and 320203305.

It is not an unprimeable number, because it can be changed into a prime (320203321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1617090 + ... + 1617287.

It is an arithmetic number, because the mean of its divisors is an integer number (42046914).

Almost surely, 2^320203323 is an apocalyptic number.

320203323 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

320203323 is a deficient number, since it is larger than the sum of its proper divisors (184359645).

320203323 is a wasteful number, since it uses less digits than its factorization.

320203323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3234394 (or 3234391 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 18.

The square root of 320203323 is about 17894.2259681720. The cubic root of 320203323 is about 684.1352135995.

Adding to 320203323 its reverse (323302023), we get a palindrome (643505346).

The spelling of 320203323 in words is "three hundred twenty million, two hundred three thousand, three hundred twenty-three".