243113760231 has 4 divisors (see below), whose sum is σ = 324151680312. Its totient is φ = 162075840152.

The previous prime is 243113760209. The next prime is 243113760271. The reversal of 243113760231 is 132067311342.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 243113760231 - 2⁵ = 243113760199 is a prime.

It is a super-2 number, since 2×243113760231² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243113760192 and 243113760201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243113760271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40518960036 + ... + 40518960041.

It is an arithmetic number, because the mean of its divisors is an integer number (81037920078).

Almost surely, 2^243113760231 is an apocalyptic number.

243113760231 is a deficient number, since it is larger than the sum of its proper divisors (81037920081).

243113760231 is an equidigital number, since it uses as much as digits as its factorization.

243113760231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81037920080.

The product of its (nonzero) digits is 18144, while the sum is 33.

The spelling of 243113760231 in words is "two hundred forty-three billion, one hundred thirteen million, seven hundred sixty thousand, two hundred thirty-one".