123132231 has 48 divisors (see below), whose sum is σ = 193808160. Its totient is φ = 78019200.

The previous prime is 123132211. The next prime is 123132257. The reversal of 123132231 is 132231321.

It is not a de Polignac number, because 123132231 - 2⁶ = 123132167 is a prime.

It is a super-2 number, since 2×123132231² = 30323092622074722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123132211) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 711661 + ... + 711833.

It is an arithmetic number, because the mean of its divisors is an integer number (4037670).

Almost surely, 2^123132231 is an apocalyptic number.

123132231 is a deficient number, since it is larger than the sum of its proper divisors (70675929).

123132231 is a wasteful number, since it uses less digits than its factorization.

123132231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 306 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 123132231 is about 11096.4963389351. The cubic root of 123132231 is about 497.4971335576.

Adding to 123132231 its reverse (132231321), we get a palindrome (255363552).

The spelling of 123132231 in words is "one hundred twenty-three million, one hundred thirty-two thousand, two hundred thirty-one".