123032231 has 4 divisors (see below), whose sum is σ = 140608272. Its totient is φ = 105456192.

The previous prime is 123032219. The next prime is 123032251. The reversal of 123032231 is 132230321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132230321 = 521 ⋅253801.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123032231 is a prime.

It is a super-2 number, since 2×123032231² = 30273859729674722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123032251) 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, 8788010 + ... + 8788023.

It is an arithmetic number, because the mean of its divisors is an integer number (35152068).

Almost surely, 2^123032231 is an apocalyptic number.

123032231 is a deficient number, since it is larger than the sum of its proper divisors (17576041).

123032231 is an equidigital number, since it uses as much as digits as its factorization.

123032231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17576040.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 123032231 is about 11091.9894969298. The cubic root of 123032231 is about 497.3624187964.

Adding to 123032231 its reverse (132230321), we get a palindrome (255262552).

The spelling of 123032231 in words is "one hundred twenty-three million, thirty-two thousand, two hundred thirty-one".