13124310115121 has 4 divisors (see below), whose sum is σ = 13124859894372. Its totient is φ = 13123760335872.

The previous prime is 13124310115097. The next prime is 13124310115123. The reversal of 13124310115121 is 12151101342131.

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 1517097207025 + 11607212908096 = 1231705^2 + 3406936^2 .

It is a cyclic number.

It is not a de Polignac number, because 13124310115121 - 2³⁰ = 13123236373297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13124310115123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 274853816 + ... + 274901561.

It is an arithmetic number, because the mean of its divisors is an integer number (3281214973593).

Almost surely, 2^{13124310115121} is an apocalyptic number.

It is an amenable number.

13124310115121 is a deficient number, since it is larger than the sum of its proper divisors (549779251).

13124310115121 is an equidigital number, since it uses as much as digits as its factorization.

13124310115121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549779250.

The product of its (nonzero) digits is 720, while the sum is 26.

Adding to 13124310115121 its reverse (12151101342131), we get a palindrome (25275411457252).

The spelling of 13124310115121 in words is "thirteen trillion, one hundred twenty-four billion, three hundred ten million, one hundred fifteen thousand, one hundred twenty-one".