12343202241421 has 4 divisors (see below), whose sum is σ = 12343531001500. Its totient is φ = 12342873481344.

The previous prime is 12343202241407. The next prime is 12343202241439. The reversal of 12343202241421 is 12414220234321.

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 9135270496521 + 3207931744900 = 3022461^2 + 1791070^2 .

It is a cyclic number.

It is not a de Polignac number, because 12343202241421 - 2⁹ = 12343202240909 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 (12343202241121) 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, 164323716 + ... + 164398813.

It is an arithmetic number, because the mean of its divisors is an integer number (3085882750375).

Almost surely, 2^{12343202241421} is an apocalyptic number.

It is an amenable number.

12343202241421 is a deficient number, since it is larger than the sum of its proper divisors (328760079).

12343202241421 is an equidigital number, since it uses as much as digits as its factorization.

12343202241421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328760078.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 12343202241421 its reverse (12414220234321), we get a palindrome (24757422475742).

The spelling of 12343202241421 in words is "twelve trillion, three hundred forty-three billion, two hundred two million, two hundred forty-one thousand, four hundred twenty-one".