123003030012 has 12 divisors (see below), whose sum is σ = 287007070056. Its totient is φ = 41001010000.

The previous prime is 123003029971. The next prime is 123003030019. The reversal of 123003030012 is 210030300321.

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 = 123003029973 and 123003030000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123003030019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5125126239 + ... + 5125126262.

It is an arithmetic number, because the mean of its divisors is an integer number (23917255838).

Almost surely, 2^123003030012 is an apocalyptic number.

123003030012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123003030012 is an abundant number, since it is smaller than the sum of its proper divisors (164004040044).

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

123003030012 is a wasteful number, since it uses less digits than its factorization.

123003030012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10250252508 (or 10250252506 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 123003030012 its reverse (210030300321), we get a palindrome (333033330333).

The spelling of 123003030012 in words is "one hundred twenty-three billion, three million, thirty thousand, twelve".