12003412342021 has 4 divisors (see below), whose sum is σ = 12003434709100. Its totient is φ = 12003389974944.

The previous prime is 12003412342007. The next prime is 12003412342043. The reversal of 12003412342021 is 12024321430021.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7539889924996 + 4463522417025 = 2745886^2 + 2112705^2 .

It is a cyclic number.

It is not a de Polignac number, because 12003412342021 - 2⁵ = 12003412341989 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 (12003412342001) 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, 10358256 + ... + 11458633.

It is an arithmetic number, because the mean of its divisors is an integer number (3000858677275).

Almost surely, 2^{12003412342021} is an apocalyptic number.

It is an amenable number.

12003412342021 is a deficient number, since it is larger than the sum of its proper divisors (22367079).

12003412342021 is an equidigital number, since it uses as much as digits as its factorization.

12003412342021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22367078.

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

Adding to 12003412342021 its reverse (12024321430021), we get a palindrome (24027733772042).

The spelling of 12003412342021 in words is "twelve trillion, three billion, four hundred twelve million, three hundred forty-two thousand, twenty-one".