123320012 has 12 divisors (see below), whose sum is σ = 216191976. Its totient is φ = 61550880.

The previous prime is 123320003. The next prime is 123320033. The reversal of 123320012 is 210023321.

It is a happy number.

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, 24713 + ... + 29280.

It is an arithmetic number, because the mean of its divisors is an integer number (18015998).

Almost surely, 2^123320012 is an apocalyptic number.

It is an amenable number.

123320012 is a deficient number, since it is larger than the sum of its proper divisors (92871964).

123320012 is a wasteful number, since it uses less digits than its factorization.

123320012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54568 (or 54566 counting only the distinct ones).

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

The square root of 123320012 is about 11104.9543898208. The cubic root of 123320012 is about 497.7499053374.

Adding to 123320012 its reverse (210023321), we get a palindrome (333343333).

The spelling of 123320012 in words is "one hundred twenty-three million, three hundred twenty thousand, twelve".