13012123013121 has 8 divisors (see below), whose sum is σ = 17349923132640. Its totient is φ = 8674535784512.

The previous prime is 13012123013117. The next prime is 13012123013161. The reversal of 13012123013121 is 12131032121031.

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 13012123013121 - 2² = 13012123013117 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13012123013161) 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, 53080056 + ... + 53324633.

It is an arithmetic number, because the mean of its divisors is an integer number (2168740391580).

Almost surely, 2^{13012123013121} is an apocalyptic number.

It is an amenable number.

13012123013121 is a deficient number, since it is larger than the sum of its proper divisors (4337800119519).

13012123013121 is a wasteful number, since it uses less digits than its factorization.

13012123013121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106445455.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 13012123013121 its reverse (12131032121031), we get a palindrome (25143155134152).

The spelling of 13012123013121 in words is "thirteen trillion, twelve billion, one hundred twenty-three million, thirteen thousand, one hundred twenty-one".