243232323543 has 24 divisors (see below), whose sum is σ = 383299497360. Its totient is φ = 147404175360.

The previous prime is 243232323533. The next prime is 243232323547. The reversal of 243232323543 is 345323232342.

243232323543 is a `hidden beast` number, since 2 + 4 + 323 + 2 + 323 + 5 + 4 + 3 = 666.

It is not a de Polignac number, because 243232323543 - 2¹⁰ = 243232322519 is a prime.

It is a super-2 number, since 2×243232323543² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243232323498 and 243232323507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243232323547) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1692055 + ... + 1830167.

It is an arithmetic number, because the mean of its divisors is an integer number (15970812390).

Almost surely, 2^243232323543 is an apocalyptic number.

243232323543 is a deficient number, since it is larger than the sum of its proper divisors (140067173817).

243232323543 is a wasteful number, since it uses less digits than its factorization.

243232323543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155919 (or 155916 counting only the distinct ones).

The product of its digits is 311040, while the sum is 36.

Adding to 243232323543 its reverse (345323232342), we get a palindrome (588555555885).

The spelling of 243232323543 in words is "two hundred forty-three billion, two hundred thirty-two million, three hundred twenty-three thousand, five hundred forty-three".