4043201350421 has 4 divisors (see below), whose sum is σ = 4043225933100. Its totient is φ = 4043176767744.

The previous prime is 4043201350393. The next prime is 4043201350423. The reversal of 4043201350421 is 1240531023404.

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 2055352322500 + 1987849027921 = 1433650^2 + 1409911^2 .

It is a cyclic number.

It is not a de Polignac number, because 4043201350421 - 2²⁶ = 4043134241557 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4043201350423) 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, 12042956 + ... + 12374133.

It is an arithmetic number, because the mean of its divisors is an integer number (1010806483275).

Almost surely, 2^{4043201350421} is an apocalyptic number.

It is an amenable number.

4043201350421 is a deficient number, since it is larger than the sum of its proper divisors (24582679).

4043201350421 is a wasteful number, since it uses less digits than its factorization.

4043201350421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24582678.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 4043201350421 its reverse (1240531023404), we get a palindrome (5283732373825).

The spelling of 4043201350421 in words is "four trillion, forty-three billion, two hundred one million, three hundred fifty thousand, four hundred twenty-one".