12030020012 has 48 divisors (see below), whose sum is σ = 24098387040. Its totient is φ = 5218255872.

The previous prime is 12030019999. The next prime is 12030020017. The reversal of 12030020012 is 21002003021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12030019975 and 12030020002.

It is not an unprimeable number, because it can be changed into a prime (12030020017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78023 + ... + 173630.

It is an arithmetic number, because the mean of its divisors is an integer number (502049730).

Almost surely, 2^12030020012 is an apocalyptic number.

It is an amenable number.

12030020012 is an abundant number, since it is smaller than the sum of its proper divisors (12068367028).

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

12030020012 is a wasteful number, since it uses less digits than its factorization.

12030020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251730 (or 251728 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 12030020012 its reverse (21002003021), we get a palindrome (33032023033).

The spelling of 12030020012 in words is "twelve billion, thirty million, twenty thousand, twelve".