12145223505113 has 8 divisors (see below), whose sum is σ = 12222284360928. Its totient is φ = 12068193750624.

The previous prime is 12145223505073. The next prime is 12145223505119. The reversal of 12145223505113 is 31150532254121.

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 12145223505113 - 2²⁸ = 12144955069657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12145223505119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6991595 + ... + 8554112.

It is an arithmetic number, because the mean of its divisors is an integer number (1527785545116).

Almost surely, 2^{12145223505113} is an apocalyptic number.

It is an amenable number.

12145223505113 is a deficient number, since it is larger than the sum of its proper divisors (77060855815).

12145223505113 is a wasteful number, since it uses less digits than its factorization.

12145223505113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15550663.

The product of its (nonzero) digits is 36000, while the sum is 35.

Adding to 12145223505113 its reverse (31150532254121), we get a palindrome (43295755759234).

The spelling of 12145223505113 in words is "twelve trillion, one hundred forty-five billion, two hundred twenty-three million, five hundred five thousand, one hundred thirteen".