12131220230 has 64 divisors (see below), whose sum is σ = 23394111552. Its totient is φ = 4513259520.

The previous prime is 12131220221. The next prime is 12131220251. The reversal of 12131220230 is 3202213121.

12131220230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12131220230² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 12131220199 and 12131220208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13769390 + ... + 13770270.

It is an arithmetic number, because the mean of its divisors is an integer number (365532993).

Almost surely, 2^12131220230 is an apocalyptic number.

12131220230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12131220230 is a deficient number, since it is larger than the sum of its proper divisors (11262891322).

12131220230 is a wasteful number, since it uses less digits than its factorization.

12131220230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1769.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12131220230 its reverse (3202213121), we get a palindrome (15333433351).

The spelling of 12131220230 in words is "twelve billion, one hundred thirty-one million, two hundred twenty thousand, two hundred thirty".