243343433431 has 6 divisors (see below), whose sum is σ = 283072973640. Its totient is φ = 208580085756.

The previous prime is 243343433423. The next prime is 243343433441. The reversal of 243343433431 is 134334343342.

It is not a de Polignac number, because 243343433431 - 2³ = 243343433423 is a prime.

It is a super-2 number, since 2×243343433431² (a number of 24 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 (243343433441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2483096211 + ... + 2483096308.

It is an arithmetic number, because the mean of its divisors is an integer number (47178828940).

Almost surely, 2^243343433431 is an apocalyptic number.

243343433431 is a deficient number, since it is larger than the sum of its proper divisors (39729540209).

243343433431 is an equidigital number, since it uses as much as digits as its factorization.

243343433431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4966192533 (or 4966192526 counting only the distinct ones).

The product of its digits is 373248, while the sum is 37.

Adding to 243343433431 its reverse (134334343342), we get a palindrome (377677776773).

The spelling of 243343433431 in words is "two hundred forty-three billion, three hundred forty-three million, four hundred thirty-three thousand, four hundred thirty-one".