320123120103 has 24 divisors (see below), whose sum is σ = 478636773888. Its totient is φ = 206012382912.

The previous prime is 320123120087. The next prime is 320123120147. The reversal of 320123120103 is 301021321023.

320123120103 is a `hidden beast` number, since 320 + 123 + 120 + 103 = 666.

It is not a de Polignac number, because 320123120103 - 2⁴ = 320123120087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320123120803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3742476 + ... + 3827057.

It is an arithmetic number, because the mean of its divisors is an integer number (19943198912).

Almost surely, 2^320123120103 is an apocalyptic number.

320123120103 is a deficient number, since it is larger than the sum of its proper divisors (158513653785).

320123120103 is a wasteful number, since it uses less digits than its factorization.

320123120103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7569703 (or 7569700 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 320123120103 its reverse (301021321023), we get a palindrome (621144441126).

The spelling of 320123120103 in words is "three hundred twenty billion, one hundred twenty-three million, one hundred twenty thousand, one hundred three".