320123012 has 24 divisors (see below), whose sum is σ = 611597952. Its totient is φ = 145402400.

The previous prime is 320122981. The next prime is 320123017. The reversal of 320123012 is 210321023.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (320123017) 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, 110462 + ... + 113322.

It is an arithmetic number, because the mean of its divisors is an integer number (25483248).

Almost surely, 2^320123012 is an apocalyptic number.

It is an amenable number.

320123012 is a deficient number, since it is larger than the sum of its proper divisors (291474940).

320123012 is a wasteful number, since it uses less digits than its factorization.

320123012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5419 (or 5417 counting only the distinct ones).

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

The square root of 320123012 is about 17891.9817795570. The cubic root of 320123012 is about 684.0780122596.

Adding to 320123012 its reverse (210321023), we get a palindrome (530444035).

The spelling of 320123012 in words is "three hundred twenty million, one hundred twenty-three thousand, twelve".