231224123 has 8 divisors (see below), whose sum is σ = 263658528. Its totient is φ = 200882304.

The previous prime is 231224113. The next prime is 231224131. The reversal of 231224123 is 321422132.

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

It is a cyclic number.

It is not a de Polignac number, because 231224123 - 2¹² = 231220027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231224095 and 231224104.

It is not an unprimeable number, because it can be changed into a prime (231224113) 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, 522911 + ... + 523352.

It is an arithmetic number, because the mean of its divisors is an integer number (32957316).

Almost surely, 2^231224123 is an apocalyptic number.

231224123 is a deficient number, since it is larger than the sum of its proper divisors (32434405).

231224123 is a wasteful number, since it uses less digits than its factorization.

231224123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046293.

The product of its digits is 576, while the sum is 20.

The square root of 231224123 is about 15206.0554714232. The cubic root of 231224123 is about 613.7776173723. Note that the first 3 decimals are identical.

Adding to 231224123 its reverse (321422132), we get a palindrome (552646255).

The spelling of 231224123 in words is "two hundred thirty-one million, two hundred twenty-four thousand, one hundred twenty-three".