12131311230 has 48 divisors (see below), whose sum is σ = 31606290144. Its totient is φ = 3228361920.

The previous prime is 12131311219. The next prime is 12131311243. The reversal of 12131311230 is 3211313121.

12131311230 is a `hidden beast` number, since 121 + 3 + 1 + 311 + 230 = 666.

It is a super-2 number, since 2×12131311230² (a number of 21 digits) contains 22 as substring.

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94561 + ... + 182220.

It is an arithmetic number, because the mean of its divisors is an integer number (658464378).

Almost surely, 2^12131311230 is an apocalyptic number.

12131311230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12131311230 is an abundant number, since it is smaller than the sum of its proper divisors (19474978914).

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

12131311230 is a wasteful number, since it uses less digits than its factorization.

12131311230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277281 (or 277278 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 12131311230 its reverse (3211313121), we get a palindrome (15342624351).

The spelling of 12131311230 in words is "twelve billion, one hundred thirty-one million, three hundred eleven thousand, two hundred thirty".