12523116222436 has 12 divisors (see below), whose sum is σ = 21953834222320. Its totient is φ = 6250592158920.

The previous prime is 12523116222349. The next prime is 12523116222443. The reversal of 12523116222436 is 63422261132521.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2741485506 + ... + 2741490073.

Almost surely, 2^{12523116222436} is an apocalyptic number.

It is an amenable number.

12523116222436 is a deficient number, since it is larger than the sum of its proper divisors (9430717999884).

12523116222436 is a wasteful number, since it uses less digits than its factorization.

12523116222436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5482976154 (or 5482976152 counting only the distinct ones).

The product of its digits is 207360, while the sum is 40.

Adding to 12523116222436 its reverse (63422261132521), we get a palindrome (75945377354957).

It can be divided in two parts, 1252311 and 6222436, that added together give a palindrome (7474747).

The spelling of 12523116222436 in words is "twelve trillion, five hundred twenty-three billion, one hundred sixteen million, two hundred twenty-two thousand, four hundred thirty-six".