12315543232105 has 8 divisors (see below), whose sum is σ = 14924975165064. Its totient is φ = 9754885728000.

The previous prime is 12315543232099. The next prime is 12315543232147. The reversal of 12315543232105 is 50123234551321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3279489196096 + 9036054036009 = 1810936^2 + 3006003^2 .

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

It is not a de Polignac number, because 12315543232105 - 2¹³ = 12315543223913 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12193606656 + ... + 12193607665.

It is an arithmetic number, because the mean of its divisors is an integer number (1865621895633).

Almost surely, 2^{12315543232105} is an apocalyptic number.

It is an amenable number.

12315543232105 is a deficient number, since it is larger than the sum of its proper divisors (2609431932959).

12315543232105 is a wasteful number, since it uses less digits than its factorization.

12315543232105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24387214427.

The product of its (nonzero) digits is 108000, while the sum is 37.

Adding to 12315543232105 its reverse (50123234551321), we get a palindrome (62438777783426).

The spelling of 12315543232105 in words is "twelve trillion, three hundred fifteen billion, five hundred forty-three million, two hundred thirty-two thousand, one hundred five".