12131230230 has 96 divisors (see below), whose sum is σ = 36104350464. Its totient is φ = 2768447808.

The previous prime is 12131230169. The next prime is 12131230271. The reversal of 12131230230 is 3203213121.

12131230230 is a `hidden beast` number, since 1 + 21 + 312 + 302 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 390117 + ... + 420063.

It is an arithmetic number, because the mean of its divisors is an integer number (376086984).

Almost surely, 2^12131230230 is an apocalyptic number.

12131230230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12131230230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18052175232).

12131230230 is an abundant number, since it is smaller than the sum of its proper divisors (23973120234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12131230230 is a wasteful number, since it uses less digits than its factorization.

12131230230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30610 (or 30607 counting only the distinct ones).

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

Adding to 12131230230 its reverse (3203213121), we get a palindrome (15334443351).

The spelling of 12131230230 in words is "twelve billion, one hundred thirty-one million, two hundred thirty thousand, two hundred thirty".