12130231 has 8 divisors (see below), whose sum is σ = 12896064. Its totient is φ = 11370240.

The previous prime is 12130169. The next prime is 12130259. The reversal of 12130231 is 13203121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 8-Lehmer number, since φ(12130231) divides (12130231-1)⁸.

It is a cyclic number.

It is not a de Polignac number, because 12130231 - 2⁷ = 12130103 is a prime.

It is a super-2 number, since 2×12130231² = 294285008226722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12130631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3291 + ... + 5923.

It is an arithmetic number, because the mean of its divisors is an integer number (1612008).

Almost surely, 2^12130231 is an apocalyptic number.

12130231 is a deficient number, since it is larger than the sum of its proper divisors (765833).

12130231 is a wasteful number, since it uses less digits than its factorization.

12130231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2921.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 12130231 is about 3482.8481161257. The cubic root of 12130231 is about 229.7680774967.

Adding to 12130231 its reverse (13203121), we get a palindrome (25333352).

The spelling of 12130231 in words is "twelve million, one hundred thirty thousand, two hundred thirty-one".