12415201345 has 4 divisors (see below), whose sum is σ = 14898241620. Its totient is φ = 9932161072.

The previous prime is 12415201343. The next prime is 12415201391. The reversal of 12415201345 is 54310251421.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5704478784 + 6710722561 = 75528^2 + 81919^2 .

It is a cyclic number.

It is not a de Polignac number, because 12415201345 - 2¹ = 12415201343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12415201343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1241520130 + ... + 1241520139.

It is an arithmetic number, because the mean of its divisors is an integer number (3724560405).

Almost surely, 2^12415201345 is an apocalyptic number.

It is an amenable number.

12415201345 is a deficient number, since it is larger than the sum of its proper divisors (2483040275).

12415201345 is an equidigital number, since it uses as much as digits as its factorization.

12415201345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2483040274.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 12415201345 its reverse (54310251421), we get a palindrome (66725452766).

The spelling of 12415201345 in words is "twelve billion, four hundred fifteen million, two hundred one thousand, three hundred forty-five".