231230123 has 4 divisors (see below), whose sum is σ = 232053288. Its totient is φ = 230406960.

The previous prime is 231230117. The next prime is 231230143. The reversal of 231230123 is 321032132.

231230123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 231230123 - 2¹⁰ = 231229099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231230143) 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, 411161 + ... + 411722.

It is an arithmetic number, because the mean of its divisors is an integer number (58013322).

Almost surely, 2^231230123 is an apocalyptic number.

231230123 is a deficient number, since it is larger than the sum of its proper divisors (823165).

231230123 is an equidigital number, since it uses as much as digits as its factorization.

231230123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823164.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 231230123 is about 15206.2527599669. The cubic root of 231230123 is about 613.7829262674.

Adding to 231230123 its reverse (321032132), we get a palindrome (552262255).

The spelling of 231230123 in words is "two hundred thirty-one million, two hundred thirty thousand, one hundred twenty-three".