13121115353 has 2 divisors, whose sum is σ = 13121115354. Its totient is φ = 13121115352.

The previous prime is 13121115317. The next prime is 13121115419. The reversal of 13121115353 is 35351112131.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13102694089 + 18421264 = 114467^2 + 4292^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13121115353 is a prime.

It is not a weakly prime, because it can be changed into another prime (13121114353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6560557676 + 6560557677.

It is an arithmetic number, because the mean of its divisors is an integer number (6560557677).

Almost surely, 2^13121115353 is an apocalyptic number.

It is an amenable number.

13121115353 is a deficient number, since it is larger than the sum of its proper divisors (1).

13121115353 is an equidigital number, since it uses as much as digits as its factorization.

13121115353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1350, while the sum is 26.

Adding to 13121115353 its reverse (35351112131), we get a palindrome (48472227484).

The spelling of 13121115353 in words is "thirteen billion, one hundred twenty-one million, one hundred fifteen thousand, three hundred fifty-three".