320023109 has 8 divisors (see below), whose sum is σ = 368621568. Its totient is φ = 272144880.

The previous prime is 320023073. The next prime is 320023117. The reversal of 320023109 is 901320023.

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

It is not a de Polignac number, because 320023109 - 2⁸ = 320022853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320023309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179102 + ... + 180879.

It is an arithmetic number, because the mean of its divisors is an integer number (46077696).

Almost surely, 2^320023109 is an apocalyptic number.

It is an amenable number.

320023109 is a deficient number, since it is larger than the sum of its proper divisors (48598459).

320023109 is a wasteful number, since it uses less digits than its factorization.

320023109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360115.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 320023109 is about 17889.1897245236. The cubic root of 320023109 is about 684.0068432052.

The spelling of 320023109 in words is "three hundred twenty million, twenty-three thousand, one hundred nine".