13121526130453 has 8 divisors (see below), whose sum is σ = 14131427914296. Its totient is φ = 12111703435200.

The previous prime is 13121526130451. The next prime is 13121526130483. The reversal of 13121526130453 is 35403162512131.

It can be written as a sum of positive squares in 4 ways, for example, as 789791244804 + 12331734885649 = 888702^2 + 3511657^2 .

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 13121526130453 - 2¹ = 13121526130451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121526130451) 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, 19427338 + ... + 20091403.

It is an arithmetic number, because the mean of its divisors is an integer number (1766428489287).

Almost surely, 2^{13121526130453} is an apocalyptic number.

13121526130453 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13121526130453 is a deficient number, since it is larger than the sum of its proper divisors (1009901783843).

13121526130453 is a wasteful number, since it uses less digits than its factorization.

13121526130453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39544295.

The product of its (nonzero) digits is 64800, while the sum is 37.

Adding to 13121526130453 its reverse (35403162512131), we get a palindrome (48524688642584).

The spelling of 13121526130453 in words is "thirteen trillion, one hundred twenty-one billion, five hundred twenty-six million, one hundred thirty thousand, four hundred fifty-three".