320123310203 has 8 divisors (see below), whose sum is σ = 325560519600. Its totient is φ = 314686480608.

The previous prime is 320123310139. The next prime is 320123310217. The reversal of 320123310203 is 302013321023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320123310203 - 2⁶ = 320123310139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320123310253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1990733 + ... + 2145521.

It is an arithmetic number, because the mean of its divisors is an integer number (40695064950).

Almost surely, 2^320123310203 is an apocalyptic number.

320123310203 is a deficient number, since it is larger than the sum of its proper divisors (5437209397).

320123310203 is a wasteful number, since it uses less digits than its factorization.

320123310203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189901.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 320123310203 its reverse (302013321023), we get a palindrome (622136631226).

The spelling of 320123310203 in words is "three hundred twenty billion, one hundred twenty-three million, three hundred ten thousand, two hundred three".