231240412123 has 16 divisors (see below), whose sum is σ = 276642017280. Its totient is φ = 189110728800.

The previous prime is 231240412087. The next prime is 231240412157. The reversal of 231240412123 is 321214042132.

It is a de Polignac number, because none of the positive numbers 2^k-231240412123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231240415123) 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, 7488988 + ... + 7519801.

It is an arithmetic number, because the mean of its divisors is an integer number (17290126080).

Almost surely, 2^231240412123 is an apocalyptic number.

231240412123 is a deficient number, since it is larger than the sum of its proper divisors (45401605157).

231240412123 is a wasteful number, since it uses less digits than its factorization.

231240412123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15008898.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 231240412123 its reverse (321214042132), we get a palindrome (552454454255).

The spelling of 231240412123 in words is "two hundred thirty-one billion, two hundred forty million, four hundred twelve thousand, one hundred twenty-three".