320313131003 has 4 divisors (see below), whose sum is σ = 320764913280. Its totient is φ = 319861348728.

The previous prime is 320313130997. The next prime is 320313131009. The reversal of 320313131003 is 300131313023.

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

It is an interprime number because it is at equal distance from previous prime (320313130997) and next prime (320313131009).

It is a cyclic number.

It is not a de Polignac number, because 320313131003 - 2¹⁰ = 320313129979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320313131009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225890075 + ... + 225891492.

It is an arithmetic number, because the mean of its divisors is an integer number (80191228320).

Almost surely, 2^320313131003 is an apocalyptic number.

320313131003 is a deficient number, since it is larger than the sum of its proper divisors (451782277).

320313131003 is an equidigital number, since it uses as much as digits as its factorization.

320313131003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451782276.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 320313131003 its reverse (300131313023), we get a palindrome (620444444026).

The spelling of 320313131003 in words is "three hundred twenty billion, three hundred thirteen million, one hundred thirty-one thousand, three".