13122445143305 has 8 divisors (see below), whose sum is σ = 15747015894792. Its totient is φ = 10497901632768.

The previous prime is 13122445143289. The next prime is 13122445143337. The reversal of 13122445143305 is 50334154422131.

It can be written as a sum of positive squares in 4 ways, for example, as 1540259709184 + 11582185434121 = 1241072^2 + 3403261^2 .

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 13122445143305 - 2⁴ = 13122445143289 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5735024 + ... + 7689953.

It is an arithmetic number, because the mean of its divisors is an integer number (1968376986849).

Almost surely, 2^{13122445143305} is an apocalyptic number.

It is an amenable number.

13122445143305 is a deficient number, since it is larger than the sum of its proper divisors (2624570751487).

13122445143305 is a wasteful number, since it uses less digits than its factorization.

13122445143305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13620475.

The product of its (nonzero) digits is 172800, while the sum is 38.

Adding to 13122445143305 its reverse (50334154422131), we get a palindrome (63456599565436).

The spelling of 13122445143305 in words is "thirteen trillion, one hundred twenty-two billion, four hundred forty-five million, one hundred forty-three thousand, three hundred five".