320310003121 has 4 divisors (see below), whose sum is σ = 321746371072. Its totient is φ = 318873635172.

The previous prime is 320310003089. The next prime is 320310003137. The reversal of 320310003121 is 121300013023.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 320310003121 - 2⁵ = 320310003089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320310003095 and 320310003104.

It is not an unprimeable number, because it can be changed into a prime (320310403121) 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, 718183641 + ... + 718184086.

It is an arithmetic number, because the mean of its divisors is an integer number (80436592768).

Almost surely, 2^320310003121 is an apocalyptic number.

It is an amenable number.

320310003121 is a deficient number, since it is larger than the sum of its proper divisors (1436367951).

320310003121 is a wasteful number, since it uses less digits than its factorization.

320310003121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1436367950.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 320310003121 its reverse (121300013023), we get a palindrome (441610016144).

The spelling of 320310003121 in words is "three hundred twenty billion, three hundred ten million, three thousand, one hundred twenty-one".