320123125 has 30 divisors (see below), whose sum is σ = 465380718. Its totient is φ = 219492000.

The previous prime is 320123113. The next prime is 320123129. The reversal of 320123125 is 521321023.

It can be written as a sum of positive squares in 5 ways, for example, as 38118276 + 282004849 = 6174^2 + 16793^2 .

It is not a de Polignac number, because 320123125 - 2⁵ = 320123093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320123129) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 25399 + ... + 35851.

Almost surely, 2^320123125 is an apocalyptic number.

320123125 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

320123125 is a deficient number, since it is larger than the sum of its proper divisors (145257593).

320123125 is an equidigital number, since it uses as much as digits as its factorization.

320123125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10487 (or 10465 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 320123125 is about 17891.9849373959. The cubic root of 320123125 is about 684.0780927504.

Adding to 320123125 its reverse (521321023), we get a palindrome (841444148).

The spelling of 320123125 in words is "three hundred twenty million, one hundred twenty-three thousand, one hundred twenty-five".