12034032421 has 16 divisors (see below), whose sum is σ = 12349467648. Its totient is φ = 11721250800.

The previous prime is 12034032397. The next prime is 12034032443. The reversal of 12034032421 is 12423043021.

It is a cyclic number.

It is not a de Polignac number, because 12034032421 - 2⁵ = 12034032389 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12034032392 and 12034032401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12034033421) 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, 14838106 + ... + 14838916.

It is an arithmetic number, because the mean of its divisors is an integer number (771841728).

Almost surely, 2^12034032421 is an apocalyptic number.

It is an amenable number.

12034032421 is a deficient number, since it is larger than the sum of its proper divisors (315435227).

12034032421 is an equidigital number, since it uses as much as digits as its factorization.

12034032421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1992.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 12034032421 its reverse (12423043021), we get a palindrome (24457075442).

The spelling of 12034032421 in words is "twelve billion, thirty-four million, thirty-two thousand, four hundred twenty-one".