320120012 has 12 divisors (see below), whose sum is σ = 578281536. Its totient is φ = 154896720.

The previous prime is 320119991. The next prime is 320120023. The reversal of 320120012 is 210021023.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 320119975 and 320120002.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1290683 + ... + 1290930.

It is an arithmetic number, because the mean of its divisors is an integer number (48190128).

Almost surely, 2^320120012 is an apocalyptic number.

It is an amenable number.

320120012 is a deficient number, since it is larger than the sum of its proper divisors (258161524).

320120012 is a wasteful number, since it uses less digits than its factorization.

320120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2581648 (or 2581646 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 320120012 is about 17891.8979429238. The cubic root of 320120012 is about 684.0758753306.

Adding to 320120012 its reverse (210021023), we get a palindrome (530141035).

The spelling of 320120012 in words is "three hundred twenty million, one hundred twenty thousand, twelve".