12023230231 has 4 divisors (see below), whose sum is σ = 12027635464. Its totient is φ = 12018825000.

The previous prime is 12023230213. The next prime is 12023230277. The reversal of 12023230231 is 13203232021.

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 12023230231 - 2¹¹ = 12023228183 is a prime.

It is a super-2 number, since 2×12023230231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12023230199 and 12023230208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12023230291) 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, 2198520 + ... + 2203981.

It is an arithmetic number, because the mean of its divisors is an integer number (3006908866).

Almost surely, 2^12023230231 is an apocalyptic number.

12023230231 is a deficient number, since it is larger than the sum of its proper divisors (4405233).

12023230231 is an equidigital number, since it uses as much as digits as its factorization.

12023230231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4405232.

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

Adding to 12023230231 its reverse (13203232021), we get a palindrome (25226462252).

The spelling of 12023230231 in words is "twelve billion, twenty-three million, two hundred thirty thousand, two hundred thirty-one".