13123332441545 has 8 divisors (see below), whose sum is σ = 15748105500360. Its totient is φ = 10498594906240.

The previous prime is 13123332441539. The next prime is 13123332441547. The reversal of 13123332441545 is 54514423332131.

It can be written as a sum of positive squares in 4 ways, for example, as 5235474829456 + 7887857612089 = 2288116^2 + 2808533^2 .

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

It is not a de Polignac number, because 13123332441545 - 2²⁸ = 13123064006089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13123332441547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8061260 + ... + 9551469.

It is an arithmetic number, because the mean of its divisors is an integer number (1968513187545).

Almost surely, 2^{13123332441545} is an apocalyptic number.

It is an amenable number.

13123332441545 is a deficient number, since it is larger than the sum of its proper divisors (2624773058815).

13123332441545 is a wasteful number, since it uses less digits than its factorization.

13123332441545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17761755.

The product of its digits is 518400, while the sum is 41.

Adding to 13123332441545 its reverse (54514423332131), we get a palindrome (67637755773676).

The spelling of 13123332441545 in words is "thirteen trillion, one hundred twenty-three billion, three hundred thirty-two million, four hundred forty-one thousand, five hundred forty-five".