12004362421 has 4 divisors (see below), whose sum is σ = 12116552832. Its totient is φ = 11892172012.

The previous prime is 12004362413. The next prime is 12004362427. The reversal of 12004362421 is 12426340021.

It is a happy number.

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 12004362421 - 2³ = 12004362413 is a prime.

It is a super-3 number, since 3×12004362421³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12004362427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56095045 + ... + 56095258.

It is an arithmetic number, because the mean of its divisors is an integer number (3029138208).

Almost surely, 2^12004362421 is an apocalyptic number.

It is an amenable number.

12004362421 is a deficient number, since it is larger than the sum of its proper divisors (112190411).

12004362421 is a wasteful number, since it uses less digits than its factorization.

12004362421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112190410.

The product of its (nonzero) digits is 2304, while the sum is 25.

The spelling of 12004362421 in words is "twelve billion, four million, three hundred sixty-two thousand, four hundred twenty-one".