12125313252 has 48 divisors (see below), whose sum is σ = 33854154880. Its totient is φ = 3730865184.

The previous prime is 12125313251. The next prime is 12125313281. The reversal of 12125313252 is 25231352121.

12125313252 is a `hidden beast` number, since 121 + 2 + 531 + 3 + 2 + 5 + 2 = 666.

12125313252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12125313251) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4316728 + ... + 4319535.

Almost surely, 2^12125313252 is an apocalyptic number.

12125313252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12125313252 is an abundant number, since it is smaller than the sum of its proper divisors (21728841628).

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

12125313252 is a wasteful number, since it uses less digits than its factorization.

12125313252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8636289 (or 8636281 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

Subtracting from 12125313252 its sum of digits (27), we obtain a square (12125313225 = 110115²).

Adding to 12125313252 its reverse (25231352121), we get a palindrome (37356665373).

The spelling of 12125313252 in words is "twelve billion, one hundred twenty-five million, three hundred thirteen thousand, two hundred fifty-two".