243400110231 has 16 divisors (see below), whose sum is σ = 343636643808. Its totient is φ = 152715878400.

The previous prime is 243400110199. The next prime is 243400110253. The reversal of 243400110231 is 132011004342.

It is not a de Polignac number, because 243400110231 - 2⁵ = 243400110199 is a prime.

It is a super-2 number, since 2×243400110231² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243400110198 and 243400110207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243400110271) 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, 1574541 + ... + 1722201.

It is an arithmetic number, because the mean of its divisors is an integer number (21477290238).

Almost surely, 2^243400110231 is an apocalyptic number.

243400110231 is a deficient number, since it is larger than the sum of its proper divisors (100236533577).

243400110231 is a wasteful number, since it uses less digits than its factorization.

243400110231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180002.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 243400110231 its reverse (132011004342), we get a palindrome (375411114573).

The spelling of 243400110231 in words is "two hundred forty-three billion, four hundred million, one hundred ten thousand, two hundred thirty-one".