4043342341421 has 4 divisors (see below), whose sum is σ = 4045827495072. Its totient is φ = 4040857187772.

The previous prime is 4043342341399. The next prime is 4043342341439. The reversal of 4043342341421 is 1241432433404.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4043342341421 - 2¹⁸ = 4043342079277 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 (4043342341471) 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, 1242574385 + ... + 1242577638.

It is an arithmetic number, because the mean of its divisors is an integer number (1011456873768).

Almost surely, 2^{4043342341421} is an apocalyptic number.

It is an amenable number.

4043342341421 is a deficient number, since it is larger than the sum of its proper divisors (2485153651).

4043342341421 is a wasteful number, since it uses less digits than its factorization.

4043342341421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2485153650.

The product of its (nonzero) digits is 110592, while the sum is 35.

Adding to 4043342341421 its reverse (1241432433404), we get a palindrome (5284774774825).

The spelling of 4043342341421 in words is "four trillion, forty-three billion, three hundred forty-two million, three hundred forty-one thousand, four hundred twenty-one".