3243420442431 has 16 divisors (see below), whose sum is σ = 5174687885920. Its totient is φ = 1995951041280.

The previous prime is 3243420442417. The next prime is 3243420442433. The reversal of 3243420442431 is 1342440243423.

3243420442431 is a `hidden beast` number, since 3 + 24 + 3 + 4 + 204 + 424 + 3 + 1 = 666.

It is not a de Polignac number, because 3243420442431 - 2⁵ = 3243420442399 is a prime.

It is a super-2 number, since 2×3243420442431² (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 (3243420442433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4620256690 + ... + 4620257391.

It is an arithmetic number, because the mean of its divisors is an integer number (323417992870).

Almost surely, 2^{3243420442431} is an apocalyptic number.

3243420442431 is a deficient number, since it is larger than the sum of its proper divisors (1931267443489).

3243420442431 is a wasteful number, since it uses less digits than its factorization.

3243420442431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9240514103 (or 9240514097 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 36.

Adding to 3243420442431 its reverse (1342440243423), we get a palindrome (4585860685854).

The spelling of 3243420442431 in words is "three trillion, two hundred forty-three billion, four hundred twenty million, four hundred forty-two thousand, four hundred thirty-one".