3243424220431 has 4 divisors (see below), whose sum is σ = 3260405499264. Its totient is φ = 3226442941600.

The previous prime is 3243424220401. The next prime is 3243424220503. The reversal of 3243424220431 is 1340224243423.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3243424220431 - 2²³ = 3243415831823 is a prime.

It is a super-2 number, since 2×3243424220431² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3243424220401) 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, 8490639130 + ... + 8490639511.

It is an arithmetic number, because the mean of its divisors is an integer number (815101374816).

Almost surely, 2^{3243424220431} is an apocalyptic number.

3243424220431 is a deficient number, since it is larger than the sum of its proper divisors (16981278833).

3243424220431 is a wasteful number, since it uses less digits than its factorization.

3243424220431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16981278832.

The product of its (nonzero) digits is 110592, while the sum is 34.

Adding to 3243424220431 its reverse (1340224243423), we get a palindrome (4583648463854).

The spelling of 3243424220431 in words is "three trillion, two hundred forty-three billion, four hundred twenty-four million, two hundred twenty thousand, four hundred thirty-one".