243103044231 has 20 divisors (see below), whose sum is σ = 367234322400. Its totient is φ = 160247694816.

The previous prime is 243103044209. The next prime is 243103044281. The reversal of 243103044231 is 132440301342.

243103044231 is a `hidden beast` number, since 2 + 4 + 310 + 304 + 42 + 3 + 1 = 666.

It is not a de Polignac number, because 243103044231 - 2⁷ = 243103044103 is a prime.

It is a super-2 number, since 2×243103044231² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 243103044195 and 243103044204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243103044281) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 16853871 + ... + 16868288.

It is an arithmetic number, because the mean of its divisors is an integer number (18361716120).

Almost surely, 2^243103044231 is an apocalyptic number.

243103044231 is a deficient number, since it is larger than the sum of its proper divisors (124131278169).

243103044231 is an equidigital number, since it uses as much as digits as its factorization.

243103044231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33722260 (or 33722251 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 243103044231 its reverse (132440301342), we get a palindrome (375543345573).

The spelling of 243103044231 in words is "two hundred forty-three billion, one hundred three million, forty-four thousand, two hundred thirty-one".