12315353444251 has 20 divisors (see below), whose sum is σ = 14588866796560. Its totient is φ = 10334562171120.

The previous prime is 12315353444249. The next prime is 12315353444323. The reversal of 12315353444251 is 15244435351321.

It is not a de Polignac number, because 12315353444251 - 2¹ = 12315353444249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12315353444198 and 12315353444207.

It is not an unprimeable number, because it can be changed into a prime (12315353444221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 32161791 + ... + 32542456.

It is an arithmetic number, because the mean of its divisors is an integer number (729443339828).

Almost surely, 2^{12315353444251} is an apocalyptic number.

12315353444251 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12315353444251 is a deficient number, since it is larger than the sum of its proper divisors (2273513352309).

12315353444251 is an frugal number, since it uses more digits than its factorization.

12315353444251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64704304 (or 64704271 counting only the distinct ones).

The product of its digits is 864000, while the sum is 43.

Adding to 12315353444251 its reverse (15244435351321), we get a palindrome (27559788795572).

The spelling of 12315353444251 in words is "twelve trillion, three hundred fifteen billion, three hundred fifty-three million, four hundred forty-four thousand, two hundred fifty-one".