12033240403421 has 4 divisors (see below), whose sum is σ = 12033870864192. Its totient is φ = 12032609942652.

The previous prime is 12033240403409. The next prime is 12033240403507. The reversal of 12033240403421 is 12430404233021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12033240403421 - 2¹⁰ = 12033240402397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12033240433421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315201755 + ... + 315239928.

It is an arithmetic number, because the mean of its divisors is an integer number (3008467716048).

Almost surely, 2^{12033240403421} is an apocalyptic number.

It is an amenable number.

12033240403421 is a deficient number, since it is larger than the sum of its proper divisors (630460771).

12033240403421 is an equidigital number, since it uses as much as digits as its factorization.

12033240403421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630460770.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 12033240403421 its reverse (12430404233021), we get a palindrome (24463644636442).

The spelling of 12033240403421 in words is "twelve trillion, thirty-three billion, two hundred forty million, four hundred three thousand, four hundred twenty-one".