12003421124 has 6 divisors (see below), whose sum is σ = 21005986974. Its totient is φ = 6001710560.

The previous prime is 12003421121. The next prime is 12003421127. The reversal of 12003421124 is 42112430021.

It is an interprime number because it is at equal distance from previous prime (12003421121) and next prime (12003421127).

It can be written as a sum of positive squares in only one way, i.e., 11657089024 + 346332100 = 107968^2 + 18610^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12003421096 and 12003421105.

It is not an unprimeable number, because it can be changed into a prime (12003421121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1500427637 + ... + 1500427644.

It is an arithmetic number, because the mean of its divisors is an integer number (3500997829).

Almost surely, 2^12003421124 is an apocalyptic number.

It is an amenable number.

12003421124 is a deficient number, since it is larger than the sum of its proper divisors (9002565850).

12003421124 is a wasteful number, since it uses less digits than its factorization.

12003421124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3000855285 (or 3000855283 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12003421124 its reverse (42112430021), we get a palindrome (54115851145).

The spelling of 12003421124 in words is "twelve billion, three million, four hundred twenty-one thousand, one hundred twenty-four".