124020012 has 12 divisors (see below), whose sum is σ = 289380056. Its totient is φ = 41340000.

The previous prime is 124020007. The next prime is 124020019. The reversal of 124020012 is 210020421.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 10335001 = 124020012 / (1 + 2 + 4 + 0 + 2 + 0 + 0 + 1 + 2).

It is a self number, because there is not a number n which added to its sum of digits gives 124020012.

It is not an unprimeable number, because it can be changed into a prime (124020019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5167489 + ... + 5167512.

Almost surely, 2^124020012 is an apocalyptic number.

124020012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

124020012 is an abundant number, since it is smaller than the sum of its proper divisors (165360044).

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

124020012 is a wasteful number, since it uses less digits than its factorization.

124020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10335008 (or 10335006 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 124020012 is about 11136.4272547348. The cubic root of 124020012 is about 498.6899197106.

Adding to 124020012 its reverse (210020421), we get a palindrome (334040433).

The spelling of 124020012 in words is "one hundred twenty-four million, twenty thousand, twelve".