13122313121 has 8 divisors (see below), whose sum is σ = 13822317600. Its totient is φ = 12423244320.

The previous prime is 13122313111. The next prime is 13122313129. The reversal of 13122313121 is 12131322131.

It is a happy number.

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 13122313121 - 2²⁶ = 13055204257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13122313093 and 13122313102.

It is not an unprimeable number, because it can be changed into a prime (13122313129) 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, 205031 + ... + 261308.

It is an arithmetic number, because the mean of its divisors is an integer number (1727789700).

Almost surely, 2^13122313121 is an apocalyptic number.

It is an amenable number.

13122313121 is a deficient number, since it is larger than the sum of its proper divisors (700004479).

13122313121 is a wasteful number, since it uses less digits than its factorization.

13122313121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467839.

The product of its digits is 216, while the sum is 20.

Adding to 13122313121 its reverse (12131322131), we get a palindrome (25253635252).

The spelling of 13122313121 in words is "thirteen billion, one hundred twenty-two million, three hundred thirteen thousand, one hundred twenty-one".