12003433420 has 24 divisors (see below), whose sum is σ = 27498775248. Its totient is φ = 4364884800.

The previous prime is 12003433367. The next prime is 12003433433. The reversal of 12003433420 is 2433430021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 12003433391 and 12003433400.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27280311 + ... + 27280750.

It is an arithmetic number, because the mean of its divisors is an integer number (1145782302).

Almost surely, 2^12003433420 is an apocalyptic number.

12003433420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12003433420 is an abundant number, since it is smaller than the sum of its proper divisors (15495341828).

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

12003433420 is a wasteful number, since it uses less digits than its factorization.

12003433420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54561081 (or 54561079 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 12003433420 its reverse (2433430021), we get a palindrome (14436863441).

The spelling of 12003433420 in words is "twelve billion, three million, four hundred thirty-three thousand, four hundred twenty".