123033231 has 12 divisors (see below), whose sum is σ = 180727560. Its totient is φ = 80631600.

The previous prime is 123033221. The next prime is 123033247. The reversal of 123033231 is 132330321.

It is not a de Polignac number, because 123033231 - 2¹⁰ = 123032207 is a prime.

It is a super-2 number, since 2×123033231² = 30274351860598722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123033221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 115320 + ... + 116381.

It is an arithmetic number, because the mean of its divisors is an integer number (15060630).

Almost surely, 2^123033231 is an apocalyptic number.

123033231 is a deficient number, since it is larger than the sum of its proper divisors (57694329).

123033231 is a wasteful number, since it uses less digits than its factorization.

123033231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231766 (or 231763 counting only the distinct ones).

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

The square root of 123033231 is about 11092.0345744142. The cubic root of 123033231 is about 497.3637663053.

Adding to 123033231 its reverse (132330321), we get a palindrome (255363552).

The spelling of 123033231 in words is "one hundred twenty-three million, thirty-three thousand, two hundred thirty-one".