12321350251 has 8 divisors (see below), whose sum is σ = 14085206240. Its totient is φ = 10558410048.

The previous prime is 12321350221. The next prime is 12321350269. The reversal of 12321350251 is 15205312321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12321350251 - 2¹¹ = 12321348203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12321350221) 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 7 ways as a sum of consecutive naturals, for example, 199866 + ... + 254143.

It is an arithmetic number, because the mean of its divisors is an integer number (1760650780).

Almost surely, 2^12321350251 is an apocalyptic number.

12321350251 is a deficient number, since it is larger than the sum of its proper divisors (1763855989).

12321350251 is an equidigital number, since it uses as much as digits as its factorization.

12321350251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457893.

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 12321350251 its reverse (15205312321), we get a palindrome (27526662572).

The spelling of 12321350251 in words is "twelve billion, three hundred twenty-one million, three hundred fifty thousand, two hundred fifty-one".