12134251242 has 12 divisors (see below), whose sum is σ = 26290877730. Its totient is φ = 4044750408.

The previous prime is 12134251223. The next prime is 12134251247. The reversal of 12134251242 is 24215243121.

12134251242 is a `hidden beast` number, since 1 + 213 + 425 + 1 + 24 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12130599321 + 3651921 = 110139^2 + 1911^2 .

It is not an unprimeable number, because it can be changed into a prime (12134251247) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 337062517 + ... + 337062552.

Almost surely, 2^12134251242 is an apocalyptic number.

12134251242 is an abundant number, since it is smaller than the sum of its proper divisors (14156626488).

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

12134251242 is a wasteful number, since it uses less digits than its factorization.

12134251242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674125077 (or 674125074 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

Adding to 12134251242 its reverse (24215243121), we get a palindrome (36349494363).

The spelling of 12134251242 in words is "twelve billion, one hundred thirty-four million, two hundred fifty-one thousand, two hundred forty-two".