12021435032039 has 4 divisors (see below), whose sum is σ = 12021778900056. Its totient is φ = 12021091164024.

The previous prime is 12021435032017. The next prime is 12021435032053. The reversal of 12021435032039 is 93023053412021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12021435032039 - 2²⁰ = 12021433983463 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 (12021435032539) 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, 171881564 + ... + 171951489.

It is an arithmetic number, because the mean of its divisors is an integer number (3005444725014).

Almost surely, 2^{12021435032039} is an apocalyptic number.

12021435032039 is a deficient number, since it is larger than the sum of its proper divisors (343868017).

12021435032039 is an equidigital number, since it uses as much as digits as its factorization.

12021435032039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343868016.

The product of its (nonzero) digits is 38880, while the sum is 35.

The spelling of 12021435032039 in words is "twelve trillion, twenty-one billion, four hundred thirty-five million, thirty-two thousand, thirty-nine".