12021043411 has 8 divisors (see below), whose sum is σ = 12949196400. Its totient is φ = 11093384352.

The previous prime is 12021043381. The next prime is 12021043423. The reversal of 12021043411 is 11434012021.

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 12021043411 - 2⁷ = 12021043283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12021043511) 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, 72136 + ... + 171013.

It is an arithmetic number, because the mean of its divisors is an integer number (1618649550).

Almost surely, 2^12021043411 is an apocalyptic number.

12021043411 is a deficient number, since it is larger than the sum of its proper divisors (928152989).

12021043411 is a wasteful number, since it uses less digits than its factorization.

12021043411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246965.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12021043411 its reverse (11434012021), we get a palindrome (23455055432).

The spelling of 12021043411 in words is "twelve billion, twenty-one million, forty-three thousand, four hundred eleven".