12243134725 has 12 divisors (see below), whose sum is σ = 15315840036. Its totient is φ = 9707828480.

The previous prime is 12243134719. The next prime is 12243134753. The reversal of 12243134725 is 52743134221.

It can be written as a sum of positive squares in 6 ways, for example, as 6482021121 + 5761113604 = 80511^2 + 75902^2 .

It is not a de Polignac number, because 12243134725 - 2¹⁷ = 12243003653 is a prime.

It is a Duffinian number.

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 11 ways as a sum of consecutive naturals, for example, 2164102 + ... + 2169751.

It is an arithmetic number, because the mean of its divisors is an integer number (1276320003).

Almost surely, 2^12243134725 is an apocalyptic number.

It is an amenable number.

12243134725 is a deficient number, since it is larger than the sum of its proper divisors (3072705311).

12243134725 is a wasteful number, since it uses less digits than its factorization.

12243134725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4333976 (or 4333971 counting only the distinct ones).

The product of its digits is 40320, while the sum is 34.

Adding to 12243134725 its reverse (52743134221), we get a palindrome (64986268946).

The spelling of 12243134725 in words is "twelve billion, two hundred forty-three million, one hundred thirty-four thousand, seven hundred twenty-five".