12003213020 has 48 divisors (see below), whose sum is σ = 26038806528. Its totient is φ = 4643023680.

The previous prime is 12003212971. The next prime is 12003213043. The reversal of 12003213020 is 2031230021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12003212986 and 12003213004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 950387 + ... + 962933.

It is an arithmetic number, because the mean of its divisors is an integer number (542475136).

Almost surely, 2^12003213020 is an apocalyptic number.

12003213020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12003213020 is an abundant number, since it is smaller than the sum of its proper divisors (14035593508).

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

12003213020 is a wasteful number, since it uses less digits than its factorization.

12003213020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14130 (or 14128 counting only the distinct ones).

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

Adding to 12003213020 its reverse (2031230021), we get a palindrome (14034443041).

The spelling of 12003213020 in words is "twelve billion, three million, two hundred thirteen thousand, twenty".