12315425252 has 12 divisors (see below), whose sum is σ = 23209839996. Its totient is φ = 5684042400.

The previous prime is 12315425249. The next prime is 12315425281. The reversal of 12315425252 is 25252451321.

It can be written as a sum of positive squares in 2 ways, for example, as 2645456356 + 9669968896 = 51434^2 + 98336^2 .

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 3 ways as a sum of consecutive naturals, for example, 118417499 + ... + 118417602.

It is an arithmetic number, because the mean of its divisors is an integer number (1934153333).

Almost surely, 2^12315425252 is an apocalyptic number.

It is an amenable number.

12315425252 is a deficient number, since it is larger than the sum of its proper divisors (10894414744).

12315425252 is a wasteful number, since it uses less digits than its factorization.

12315425252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236835118 (or 236835116 counting only the distinct ones).

The product of its digits is 24000, while the sum is 32.

Adding to 12315425252 its reverse (25252451321), we get a palindrome (37567876573).

The spelling of 12315425252 in words is "twelve billion, three hundred fifteen million, four hundred twenty-five thousand, two hundred fifty-two".