12325216642 has 4 divisors (see below), whose sum is σ = 18487824966. Its totient is φ = 6162608320.

The previous prime is 12325216637. The next prime is 12325216649. The reversal of 12325216642 is 24661252321.

12325216642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10650033601 + 1675183041 = 103199^2 + 40929^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12325216598 and 12325216607.

It is not an unprimeable number, because it can be changed into a prime (12325216649) 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 as a sum of consecutive naturals, namely, 3081304159 + ... + 3081304162.

Almost surely, 2^12325216642 is an apocalyptic number.

12325216642 is a deficient number, since it is larger than the sum of its proper divisors (6162608324).

12325216642 is an equidigital number, since it uses as much as digits as its factorization.

12325216642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6162608323.

The product of its digits is 34560, while the sum is 34.

Adding to 12325216642 its reverse (24661252321), we get a palindrome (36986468963).

The spelling of 12325216642 in words is "twelve billion, three hundred twenty-five million, two hundred sixteen thousand, six hundred forty-two".