243243423031 has 8 divisors (see below), whose sum is σ = 279599377824. Its totient is φ = 207289191840.

The previous prime is 243243423029. The next prime is 243243423043. The reversal of 243243423031 is 130324342342.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 243243423031 - 2¹ = 243243423029 is a prime.

It is a super-2 number, since 2×243243423031² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243243422984 and 243243423002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243243423131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100429600 + ... + 100432021.

It is an arithmetic number, because the mean of its divisors is an integer number (34949922228).

Almost surely, 2^243243423031 is an apocalyptic number.

243243423031 is a deficient number, since it is larger than the sum of its proper divisors (36355954793).

243243423031 is a wasteful number, since it uses less digits than its factorization.

243243423031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200861801.

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 243243423031 its reverse (130324342342), we get a palindrome (373567765373).

The spelling of 243243423031 in words is "two hundred forty-three billion, two hundred forty-three million, four hundred twenty-three thousand, thirty-one".