12445240213 has 8 divisors (see below), whose sum is σ = 14553902528. Its totient is φ = 10419270624.

The previous prime is 12445240193. The next prime is 12445240243. The reversal of 12445240213 is 31204254421.

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

It is not a de Polignac number, because 12445240213 - 2¹³ = 12445232021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12445240243) 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, 20672856 + ... + 20673457.

It is an arithmetic number, because the mean of its divisors is an integer number (1819237816).

Almost surely, 2^12445240213 is an apocalyptic number.

It is an amenable number.

12445240213 is a deficient number, since it is larger than the sum of its proper divisors (2108662315).

12445240213 is an equidigital number, since it uses as much as digits as its factorization.

12445240213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41346363.

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 12445240213 its reverse (31204254421), we get a palindrome (43649494634).

The spelling of 12445240213 in words is "twelve billion, four hundred forty-five million, two hundred forty thousand, two hundred thirteen".