12042555321 has 8 divisors (see below), whose sum is σ = 16215718464. Its totient is φ = 7948881200.

The previous prime is 12042555299. The next prime is 12042555347. The reversal of 12042555321 is 12355524021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12042555321 - 2⁵ = 12042555289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12042555391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19871901 + ... + 19872506.

It is an arithmetic number, because the mean of its divisors is an integer number (2026964808).

Almost surely, 2^12042555321 is an apocalyptic number.

It is an amenable number.

12042555321 is a deficient number, since it is larger than the sum of its proper divisors (4173163143).

12042555321 is a wasteful number, since it uses less digits than its factorization.

12042555321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39744511.

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 12042555321 in words is "twelve billion, forty-two million, five hundred fifty-five thousand, three hundred twenty-one".