233123 has 4 divisors (see below), whose sum is σ = 254328. Its totient is φ = 211920.

The previous prime is 233117. The next prime is 233141. The reversal of 233123 is 321332.

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 233123 - 2¹² = 229027 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 233098 and 233107.

It is not an unprimeable number, because it can be changed into a prime (233113) 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, 10586 + ... + 10607.

It is an arithmetic number, because the mean of its divisors is an integer number (63582).

2²³³¹²³ is an apocalyptic number.

233123 is a deficient number, since it is larger than the sum of its proper divisors (21205).

233123 is a wasteful number, since it uses less digits than its factorization.

233123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21204.

The product of its digits is 108, while the sum is 14.

The square root of 233123 is about 482.8281267698. The cubic root of 233123 is about 61.5453209902.

Adding to 233123 its reverse (321332), we get a palindrome (554455).

Subtracting 233123 from its reverse (321332), we obtain a square (88209 = 297²).

The spelling of 233123 in words is "two hundred thirty-three thousand, one hundred twenty-three".