243231225123 has 8 divisors (see below), whose sum is σ = 325057281808. Its totient is φ = 161779659264.

The previous prime is 243231225109. The next prime is 243231225161. The reversal of 243231225123 is 321522132342.

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

It is not a de Polignac number, because 243231225123 - 2⁶ = 243231225059 is a prime.

It is a super-2 number, since 2×243231225123² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243231225323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93621190 + ... + 93623787.

It is an arithmetic number, because the mean of its divisors is an integer number (40632160226).

Almost surely, 2^243231225123 is an apocalyptic number.

243231225123 is a deficient number, since it is larger than the sum of its proper divisors (81826056685).

243231225123 is a wasteful number, since it uses less digits than its factorization.

243231225123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187245413.

The product of its digits is 17280, while the sum is 30.

Adding to 243231225123 its reverse (321522132342), we get a palindrome (564753357465).

The spelling of 243231225123 in words is "two hundred forty-three billion, two hundred thirty-one million, two hundred twenty-five thousand, one hundred twenty-three".