320123123103 has 16 divisors (see below), whose sum is σ = 487964987136. Its totient is φ = 182868127680.

The previous prime is 320123123101. The next prime is 320123123119. The reversal of 320123123103 is 301321321023.

320123123103 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 320123123103 - 2¹ = 320123123101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 320123123103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320123123101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2407518 + ... + 2537003.

It is an arithmetic number, because the mean of its divisors is an integer number (30497811696).

Almost surely, 2^320123123103 is an apocalyptic number.

320123123103 is a deficient number, since it is larger than the sum of its proper divisors (167841864033).

320123123103 is a wasteful number, since it uses less digits than its factorization.

320123123103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4947614.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 320123123103 its reverse (301321321023), we get a palindrome (621444444126).

The spelling of 320123123103 in words is "three hundred twenty billion, one hundred twenty-three million, one hundred twenty-three thousand, one hundred three".