13124450122445 has 4 divisors (see below), whose sum is σ = 15749340146940. Its totient is φ = 10499560097952.

The previous prime is 13124450122409. The next prime is 13124450122519. The reversal of 13124450122445 is 54422105442131.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4108104707716 + 9016345414729 = 2026846^2 + 3002723^2 .

It is a cyclic number.

It is not a de Polignac number, because 13124450122445 - 2¹² = 13124450118349 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13124450122399 and 13124450122408.

It is a congruent number.

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, 1312445012240 + ... + 1312445012249.

It is an arithmetic number, because the mean of its divisors is an integer number (3937335036735).

Almost surely, 2^{13124450122445} is an apocalyptic number.

It is an amenable number.

13124450122445 is a deficient number, since it is larger than the sum of its proper divisors (2624890024495).

13124450122445 is an equidigital number, since it uses as much as digits as its factorization.

13124450122445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2624890024494.

The product of its (nonzero) digits is 153600, while the sum is 38.

Adding to 13124450122445 its reverse (54422105442131), we get a palindrome (67546555564576).

The spelling of 13124450122445 in words is "thirteen trillion, one hundred twenty-four billion, four hundred fifty million, one hundred twenty-two thousand, four hundred forty-five".