12043034021 has 8 divisors (see below), whose sum is σ = 12408134040. Its totient is φ = 11683040512.

The previous prime is 12043034009. The next prime is 12043034023.

12043034021 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 5014056100 + 7028977921 = 70810^2 + 83839^2 .

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 12043034021 - 2¹⁰ = 12043032997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12043033984 and 12043034002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12043034023) 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, 1271840 + ... + 1281273.

It is an arithmetic number, because the mean of its divisors is an integer number (1551016755).

Almost surely, 2^12043034021 is an apocalyptic number.

It is an amenable number.

12043034021 is a deficient number, since it is larger than the sum of its proper divisors (365100019).

12043034021 is an equidigital number, since it uses as much as digits as its factorization.

12043034021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2553255.

The product of its (nonzero) digits is 576, while the sum is 20.

It can be divided in two parts, 120430 and 34021, that added together give a palindrome (154451).

The spelling of 12043034021 in words is "twelve billion, forty-three million, thirty-four thousand, twenty-one".