4333433243421 has 4 divisors (see below), whose sum is σ = 5777910991232. Its totient is φ = 2888955495612.

The previous prime is 4333433243389. The next prime is 4333433243431. The reversal of 4333433243421 is 1243423343334.

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 not a de Polignac number, because 4333433243421 - 2⁵ = 4333433243389 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4333433243421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4333433243431) 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, 722238873901 + ... + 722238873906.

It is an arithmetic number, because the mean of its divisors is an integer number (1444477747808).

Almost surely, 2^{4333433243421} is an apocalyptic number.

It is an amenable number.

4333433243421 is a deficient number, since it is larger than the sum of its proper divisors (1444477747811).

4333433243421 is a wasteful number, since it uses less digits than its factorization.

4333433243421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444477747810.

The product of its digits is 746496, while the sum is 39.

Adding to 4333433243421 its reverse (1243423343334), we get a palindrome (5576856586755).

The spelling of 4333433243421 in words is "four trillion, three hundred thirty-three billion, four hundred thirty-three million, two hundred forty-three thousand, four hundred twenty-one".