231033123 has 6 divisors (see below), whose sum is σ = 333714524. Its totient is φ = 154022076.

The previous prime is 231033119. The next prime is 231033149. The reversal of 231033123 is 321330132.

231033123 is a `hidden beast` number, since 2 + 310 + 331 + 23 = 666.

It is not a de Polignac number, because 231033123 - 2² = 231033119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231033096 and 231033105.

It is not an unprimeable number, because it can be changed into a prime (231033113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12835165 + ... + 12835182.

Almost surely, 2^231033123 is an apocalyptic number.

231033123 is a deficient number, since it is larger than the sum of its proper divisors (102681401).

231033123 is a wasteful number, since it uses less digits than its factorization.

231033123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25670353 (or 25670350 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 231033123 is about 15199.7737812114. The cubic root of 231033123 is about 613.6085695275.

Adding to 231033123 its reverse (321330132), we get a palindrome (552363255).

The spelling of 231033123 in words is "two hundred thirty-one million, thirty-three thousand, one hundred twenty-three".