12611215005223 has 4 divisors (see below), whose sum is σ = 12612040848208. Its totient is φ = 12610389162240.

The previous prime is 12611215005149. The next prime is 12611215005229. The reversal of 12611215005223 is 32250051211621.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12611215005223 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 (12611215005229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 412898586 + ... + 412929127.

It is an arithmetic number, because the mean of its divisors is an integer number (3153010212052).

Almost surely, 2^{12611215005223} is an apocalyptic number.

12611215005223 is a deficient number, since it is larger than the sum of its proper divisors (825842985).

12611215005223 is an equidigital number, since it uses as much as digits as its factorization.

12611215005223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825842984.

The product of its (nonzero) digits is 7200, while the sum is 31.

Adding to 12611215005223 its reverse (32250051211621), we get a palindrome (44861266216844).

The spelling of 12611215005223 in words is "twelve trillion, six hundred eleven billion, two hundred fifteen million, five thousand, two hundred twenty-three".