320023112 has 8 divisors (see below), whose sum is σ = 600043350. Its totient is φ = 160011552.

The previous prime is 320023073. The next prime is 320023117. The reversal of 320023112 is 211320023.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 199769956 + 120253156 = 14134^2 + 10966^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (320023117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20001437 + ... + 20001452.

Almost surely, 2^320023112 is an apocalyptic number.

It is an amenable number.

320023112 is a deficient number, since it is larger than the sum of its proper divisors (280020238).

320023112 is a wasteful number, since it uses less digits than its factorization.

320023112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40002895 (or 40002891 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 320023112 is about 17889.1898083731. The cubic root of 320023112 is about 684.0068453426.

Adding to 320023112 its reverse (211320023), we get a palindrome (531343135).

The spelling of 320023112 in words is "three hundred twenty million, twenty-three thousand, one hundred twelve".