233123231 has 8 divisors (see below), whose sum is σ = 255218304. Its totient is φ = 211178520.

The previous prime is 233123221. The next prime is 233123249. The reversal of 233123231 is 132321332.

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 233123231 - 2¹⁴ = 233106847 is a prime.

It is a super-3 number, since 3×233123231³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233123221) 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, 34331 + ... + 40556.

It is an arithmetic number, because the mean of its divisors is an integer number (31902288).

Almost surely, 2^233123231 is an apocalyptic number.

233123231 is a deficient number, since it is larger than the sum of its proper divisors (22095073).

233123231 is a wasteful number, since it uses less digits than its factorization.

233123231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75181.

The product of its digits is 648, while the sum is 20.

The square root of 233123231 is about 15268.3735545080. The cubic root of 233123231 is about 615.4534131846.

Adding to 233123231 its reverse (132321332), we get a palindrome (365444563).

The spelling of 233123231 in words is "two hundred thirty-three million, one hundred twenty-three thousand, two hundred thirty-one".