4340243051421 has 8 divisors (see below), whose sum is σ = 6038599028160. Its totient is φ = 2767691221152.

The previous prime is 4340243051411. The next prime is 4340243051449. The reversal of 4340243051421 is 1241503420434.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4340243051421 - 2⁶ = 4340243051357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4340243051401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31451036536 + ... + 31451036673.

It is an arithmetic number, because the mean of its divisors is an integer number (754824878520).

Almost surely, 2^{4340243051421} is an apocalyptic number.

It is an amenable number.

4340243051421 is a deficient number, since it is larger than the sum of its proper divisors (1698355976739).

4340243051421 is a wasteful number, since it uses less digits than its factorization.

4340243051421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62902073235.

The product of its (nonzero) digits is 46080, while the sum is 33.

Adding to 4340243051421 its reverse (1241503420434), we get a palindrome (5581746471855).

The spelling of 4340243051421 in words is "four trillion, three hundred forty billion, two hundred forty-three million, fifty-one thousand, four hundred twenty-one".