243104522231 has 16 divisors (see below), whose sum is σ = 250002250848. Its totient is φ = 236253696000.

The previous prime is 243104522209. The next prime is 243104522239. The reversal of 243104522231 is 132225401342.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243104522231 is a prime.

It is a super-2 number, since 2×243104522231² (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 = 243104522194 and 243104522203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243104522239) 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, 37681556 + ... + 37688006.

It is an arithmetic number, because the mean of its divisors is an integer number (15625140678).

Almost surely, 2^243104522231 is an apocalyptic number.

243104522231 is a deficient number, since it is larger than the sum of its proper divisors (6897728617).

243104522231 is a wasteful number, since it uses less digits than its factorization.

243104522231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9922.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 243104522231 its reverse (132225401342), we get a palindrome (375329923573).

The spelling of 243104522231 in words is "two hundred forty-three billion, one hundred four million, five hundred twenty-two thousand, two hundred thirty-one".