12012042131 has 8 divisors (see below), whose sum is σ = 12293801520. Its totient is φ = 11730392352.

The previous prime is 12012042127. The next prime is 12012042139. The reversal of 12012042131 is 13124021021.

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

It is a cyclic number.

It is not a de Polignac number, because 12012042131 - 2² = 12012042127 is a prime.

It is a super-2 number, since 2×12012042131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12012042139) 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, 220265 + ... + 269333.

It is an arithmetic number, because the mean of its divisors is an integer number (1536725190).

Almost surely, 2^12012042131 is an apocalyptic number.

12012042131 is a deficient number, since it is larger than the sum of its proper divisors (281759389).

12012042131 is an equidigital number, since it uses as much as digits as its factorization.

12012042131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54805.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12012042131 its reverse (13124021021), we get a palindrome (25136063152).

The spelling of 12012042131 in words is "twelve billion, twelve million, forty-two thousand, one hundred thirty-one".