232131223 has 4 divisors (see below), whose sum is σ = 232628760. Its totient is φ = 231633688.

The previous prime is 232131199. The next prime is 232131239. The reversal of 232131223 is 322131232.

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 232131223 - 2⁵ = 232131191 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 232131223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232131023) 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, 248068 + ... + 249001.

It is an arithmetic number, because the mean of its divisors is an integer number (58157190).

Almost surely, 2^232131223 is an apocalyptic number.

232131223 is a deficient number, since it is larger than the sum of its proper divisors (497537).

232131223 is an equidigital number, since it uses as much as digits as its factorization.

232131223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497536.

The product of its digits is 432, while the sum is 19.

The square root of 232131223 is about 15235.8532087967. The cubic root of 232131223 is about 614.5791934830.

Adding to 232131223 its reverse (322131232), we get a palindrome (554262455).

Subtracting 232131223 from its reverse (322131232), we obtain a palindrome (90000009).

The spelling of 232131223 in words is "two hundred thirty-two million, one hundred thirty-one thousand, two hundred twenty-three".