320231003 has 4 divisors (see below), whose sum is σ = 324284640. Its totient is φ = 316177368.

The previous prime is 320230987. The next prime is 320231011. The reversal of 320231003 is 300132023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 300132023 = 859 ⋅349397.

It is a cyclic number.

It is not a de Polignac number, because 320231003 - 2⁴ = 320230987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320231063) 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, 2026700 + ... + 2026857.

It is an arithmetic number, because the mean of its divisors is an integer number (81071160).

Almost surely, 2^320231003 is an apocalyptic number.

320231003 is a deficient number, since it is larger than the sum of its proper divisors (4053637).

320231003 is an equidigital number, since it uses as much as digits as its factorization.

320231003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4053636.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 320231003 is about 17894.9993853031. Note that the first 3 decimals coincide. The cubic root of 320231003 is about 684.1549264046.

Adding to 320231003 its reverse (300132023), we get a palindrome (620363026).

The spelling of 320231003 in words is "three hundred twenty million, two hundred thirty-one thousand, three".