320043012 has 12 divisors (see below), whose sum is σ = 746767056. Its totient is φ = 106681000.

The previous prime is 320042993. The next prime is 320043029. The reversal of 320043012 is 210340023.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 320042982 and 320043000.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 13335114 + ... + 13335137.

It is an arithmetic number, because the mean of its divisors is an integer number (62230588).

Almost surely, 2^320043012 is an apocalyptic number.

It is an amenable number.

320043012 is an abundant number, since it is smaller than the sum of its proper divisors (426724044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320043012 is a wasteful number, since it uses less digits than its factorization.

320043012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26670258 (or 26670256 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 320043012 is about 17889.7460015507. The cubic root of 320043012 is about 684.0210229167.

Adding to 320043012 its reverse (210340023), we get a palindrome (530383035).

The spelling of 320043012 in words is "three hundred twenty million, forty-three thousand, twelve".