12445421315 has 8 divisors (see below), whose sum is σ = 14935108320. Its totient is φ = 9955935232.

The previous prime is 12445421309. The next prime is 12445421321. The reversal of 12445421315 is 51312454421.

12445421315 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12445421309) and next prime (12445421321).

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 12445421315 - 2²⁰ = 12444372739 is a prime.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 194066 + ... + 250104.

It is an arithmetic number, because the mean of its divisors is an integer number (1866888540).

Almost surely, 2^12445421315 is an apocalyptic number.

12445421315 is a deficient number, since it is larger than the sum of its proper divisors (2489687005).

12445421315 is an equidigital number, since it uses as much as digits as its factorization.

12445421315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100461.

The product of its digits is 19200, while the sum is 32.

Adding to 12445421315 its reverse (51312454421), we get a palindrome (63757875736).

The spelling of 12445421315 in words is "twelve billion, four hundred forty-five million, four hundred twenty-one thousand, three hundred fifteen".