123530012 has 12 divisors (see below), whose sum is σ = 216264216. Its totient is φ = 61740240.

The previous prime is 123530003. The next prime is 123530047. The reversal of 123530012 is 210035321.

It is a congruent 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, 9383 + ... + 18305.

It is an arithmetic number, because the mean of its divisors is an integer number (18022018).

Almost surely, 2^123530012 is an apocalyptic number.

It is an amenable number.

123530012 is a deficient number, since it is larger than the sum of its proper divisors (92734204).

123530012 is a wasteful number, since it uses less digits than its factorization.

123530012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12388 (or 12386 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 123530012 is about 11114.4056071389. The cubic root of 123530012 is about 498.0322823328.

Adding to 123530012 its reverse (210035321), we get a palindrome (333565333).

The spelling of 123530012 in words is "one hundred twenty-three million, five hundred thirty thousand, twelve".